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Levonorgestrel and Sore Breasts: What Users Say

Brand names: Mirena, Kyleena, Liletta, Skyla, Plan B One-Step, PostDay One-Step, My Choice, Take Action, Julie, Aftera, My Way, Option 2, Morning After, AfterPill, Opcicon One-Step, New Day, Her Style, AfterPlan, Athentia Next, EContra One-Step, Next Choice One Dose, Fallback Solo Curae SheWise Optionelle …show all brand names

Sore breasts: mentioned by 768 users (7.3%)

Based on user experiences from 10,519 Levonorgestrel reviews, the following table shows the most commonly mentioned side effects.

All user comments are moderated by Drugs.com. Each review is verified for relevance and screened for inappropriate content. Side effects are user-reported and not clinically verified.

cramps 47.5%
bleeding 18.6%
spotting 18.3%
pain 13.5%
nausea 11.8%
acne 11.1%
weight gain 9.4%
mood swings 7.8%
sore breasts 7.3%
headaches 6.8%

Reviews for Levonorgestrel

Commonly mentioned side effects
  • Ano...
  • Taken for less than 1 month
  • March 7, 2021

For Emergency Contraception "This has been the roughest 2 weeks of my life, but I promised whenever my period came, I would write on here. Feb 21st, the day after my ovulation day but still in my fertile window, my BF fully came in me after the condom broke. He bought the Plan B 45 minutes later, and I immediately took it. I’m not even close to the age that I want to have kids, so I was scared for my life. I did an internet search on EVERYTHING. Reading these reviews helped me, but did not stop me from stressing. I experienced a little bit of nausea after taking it, but I think that was just me overthinking. I also had all my PMS symptoms like sore boobs, back fatigue, and mild cramps. Then just yesterday, I had spotting similar to implantation bleeding (internet said so), and I was freaking out, but today the flow is heavier, and it’ll probably get heavier as the week goes. I just wanted to say, don’t stress, don’t put a stop to your daily life. And PRAY! Even if you're not religious, just believe in something :) Hope this helps someone."

9 / 10
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  • Tha...
  • Taken for less than 1 month
  • February 24, 2020

For Emergency Contraception "Ok, so I took this medicine in January, had a light period about a week later. Come the following month, I had every pregnancy symptom in the book. I was nauseous, breasts were killing me, hot flashes, and SUPER moody. I was convinced I was pregnant (I have one child and had all the same symptoms). I took 3 pregnancy tests, all negative. My period came today. I wrote this because I hope to help someone who is going through it a month after. I searched this board high and low for someone like this. Hope this helps someone!"

10 / 10
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  • gir...
  • May 22, 2020

For Emergency Contraception "Plan B does work during ovulation. I’ve taken it a few times when I’ve been at the peak of ovulating. Whoever says it doesn’t work, do not listen to them. In the past, I’ve never really had any symptoms, but the last time I took Plan B, it was horrible. Plan B made me anxious, sore boobs, stress, and it literally made me feel pregnant. The more you stress, the longer your period will take to stop by and say hello to you. My period was two weeks late, I had horrible hormonal imbalance for almost a month. Girlies, please use protection, the stress is not worth it!"

9 / 10
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Frequently asked questions

  • Anonymous
  • Taken for less than 1 month
  • July 10, 2021

For Emergency Contraception "First, take a breath and relax, you are OK. I had sex on June 25th, the day after my ovulation day (Flo app), and the condom broke, and he came in me. I’m young and still live with my parents, so pregnancy was a no. So he got me a Plan B, which I took an hour later. However, I decided to google the success rate, and it says it didn’t work if you're ovulating. So I literally almost cried. My OBGYN said that it still works, everyone around me kept saying you should be fine, so I decided to stop worrying. But I still looked on this page every day for about two weeks, and the stories helped a lot. I did take a pregnancy test my doctor gave me a few days before my period started, and it was negative. Symptoms were nausea an hour after the pill and then mild cramps which were on and off; closer to my cycle, I got sore nipples and cramping. It is now July 10th, and I got my period a day late. Have faith, ladies, the pill works. It’s true what they say - don’t stress or stop your life for this."

9 / 10
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  • Meg...
  • December 15, 2020

For Emergency Contraception "I am leaving a review because two weeks ago I was on here reading reviews just to ease my mind. On December 3rd, went on a second date with a guy, and got a little too drunk. Had sex a couple of times and didn't realize the condom broke and he came inside. It was 2 am so I went first thing the next morning to get Plan B. I took it at 9 am, I checked my period tracker, realized we had sex ON THE DAY I WAS OVULATING. I was panicked as my period is regular, I always get my period on the predicted day, the ovulation predictor is spot on. Next I'm on the internet finding sites that say Plan B doesn't work when you are already ovulating. I decided to trust the pill and wait. I experienced EXTREME fatigue, breast tenderness, dizziness, bloating, food cravings, minor cramping, more stressing, etc. Fast forward to December 15th, lo and behold, Aunt Flo showed up a day early! Trust the process, even a woman who has a very regular cycle was saved by Plan B during ovulation. Good luck!"

10 / 10
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  • mck...
  • Taken for less than 1 month
  • October 12, 2020

For Emergency Contraception "So I wanted to come on here because I used to be the girl reading the reviews to calm me down. I took the Plan B 2 hours after my boyfriend and I had unprotected sex (he also finished inside me). I didn’t have symptoms till about 4 days later, my breasts started to hurt, cramps, nausea. I also had gotten a really big nosebleed, so I started freaking out. About another week later, I got my period, which was very heavy. Just trust the pill and relax, you will be okay."

9 / 10
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  • Be ...
  • November 8, 2020

For Emergency Contraception "Ladies, this works. I promised myself if I got my period, I would write a review. I had already ovulated, the condom broke while it was inside of me, AND I took this pill at hour 70. After three weeks, tons of pregnancy tests, sore breasts, weird spotting (brown and pink... was convinced it was implantation bleeding), I finally got my period. It was 4 days late and started out very slowly, but it’s here. Trust the process, get off of Google, and remember that everyone’s body is different and will have a different reaction to the hormones."

10 / 10
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More FAQ

  • Big...
  • February 14, 2020

For Emergency Contraception "My boyfriend and I had unprotected sex and he finished fully inside me - no pullout or anything. I’m also not on birth control. AND it was THE ovulation day. My period tracking app said it was the most fertile day of my cycle. I took it within 30 mins of him doing that, and I just started my period 5 days before it was scheduled to arrive. I spent so much money on pregnancy tests while checking this past week and a half. I had all of the symptoms: nausea, vomiting, bloating, mood swings, sore breasts, extreme fatigue. This pill can cause those things. The odds really are in your favor and don’t let any other apps or pills say that this one doesn’t work while ovulating. Tons of girls take it on their ovulation and they’re fine. Just take this pill immediately (within an hour) and try to relax! Keep living life — don’t let stress take over ❤️"

10 / 10
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  • mak...
  • May 6, 2020

For Emergency Contraception "If you find yourself here reading these reviews, then you are probably going through the same as I recently was. I promised myself I would come here and tell my story if I got my period. I had sex on the very LAST day of my ovulation, and the condom had slipped off at some point. I had no idea when I took the My Way pill that the whole point of the pill was to slow down your ovulation, so I thought it was too late for me. I took it around 17 hours after it happened. No symptoms from this except sore breasts, but everybody’s body is different. My period was 3 days late, and finally came this morning. I cried. I'm not sure if the pill is what prevented the pregnancy or if I just got lucky, but I'm thankful I'm not pregnant. Try not to dwell on the thought you might be pregnant, it just causes unnecessary stress. Remember to try and stay positive even though it is hard. I have learned a big lesson from this experience, and I hope reading this brought you a little comfort because God knows I needed it"

8 / 10
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  • Ano...
  • Taken for less than 1 month
  • February 21, 2020

For Emergency Contraception "I had unprotected sex on my ovulation day (according to Flo app). My boyfriend pulled out, but we went for round two without cleaning up, so I decided to take the pill the next morning just to be safe. Five days after, I began to bleed lightly for three days. After the second week, I got hit with ALL of the symptoms. I had mild cramping, nausea, fatigue, sore nipples, and I broke out HORRIBLY. I took a pregnancy test 7 days after my missed period, it was negative. The next day I got my period (8 days late). Very heavy and bad cramping. I read pages of the reviews panicking about if the pill would work or not on ovulation, but it did for me, so just relax."

10 / 10
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  • Anonymous
  • September 23, 2020

For Emergency Contraception "I had sex the day before ovulating and the day of ovulation. My boyfriend ejaculated in me on both days. I had to take a Plan B on both days. The pills work. My only symptom was sore breasts and I got my cycle on time. Please trust the pill and don’t believe that it doesn’t work during ovulation because it does!! I was up stressed till my cycle came and it came on time."

10 / 10
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  • Tar...
  • Taken for less than 1 month
  • September 23, 2020

For Emergency Contraception "I wanted to share a positive post on here. I took Plan B about 20 hours after unprotected sex. For 3 weeks, I panicked. I saw no spotting at all, except for one day after taking it (which I swore was implantation bleeding). I was also sick to my stomach, and my boobs hurt. After several pregnancy tests and being a week late, I finally got my period. The wait almost literally had me on edge, but I was never so glad to get my period. Never again taking this chance. Please try to stay calm and trust the pill and the process. I took this pill literally during ovulation, and it still worked. Very effective. Just remember everyone's body reacts differently to the hormones."

9 / 10
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  • Veq...
  • Taken for less than 1 month
  • October 25, 2020

For Emergency Contraception "You’re probably scrolling right now super anxious and stressed, so I say calm down and let the pill work its magic. I’m certain it was on ovulation day, the condom broke, he said he did a risky pull out but I honestly don’t trust the pulling out method at all!!! Lol I just don’t trust anyone enough to beat biology like that, and I don’t even want to think about children till I’m 30. I dragged him to immediately buy me Plan B afterwards (about 20 minutes later) and took it in the parking lot. About 5 days later, I started to get super bloated, loss of appetite, crazy mood swings, nausea, tender breasts, and a rise in temperature. Another 4 days and cramping arrived, I saw spotting (like literal red dots) on the 4th day, and that definitely made me panic, but the next day I saw clots and regular flow. Symptoms were awful, but it did its job, and that’s all that matters."

10 / 10
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  • Ano...
  • Taken for less than 1 month
  • November 26, 2019

For Emergency Contraception "I told myself I would share my experience if it worked because these reviews were the only thing keeping me sane. I had unprotected sex with my boyfriend on the 14th, which was when I was ovulating. Keep in mind I’m not on any birth control, nor did we use a condom. I know, dumb. We bought a Plan B, and I took it an hour after we finished. For two weeks, I was a mess. Especially when I found out it doesn't work during ovulation. I had extreme nausea, my boobs hurt, I had chills, lower back pain, bloating. I was convinced I was pregnant. But I got my period today, a day late. It’s heavier than usual, and the cramps are unbearable, but now I can relax. So please, for the girl reading this, take a deep breath. This pill really works."

10 / 10
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  • del...
  • August 9, 2009

For Birth Control "I'm 27 years old and the mother of two boys. I had the Mirena inserted one and a half years ago. The insertion was fine, mild cramping, but for the last year and a half I have experienced depression, bad acne, weight gain of about ten kilos, mood swings. Six months ago once my periods stopped altogether the symptoms got worse. I began having stomach cramps, nausea on most days, painful breasts and diminished libido and when it was supposed to be that time of the month my abdomen would bloat. I had Mirena removed last week and feel like a new person. I'm already losing weight and all the other symptoms have vanished."

2 / 10
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  • If...
  • March 19, 2017

For Emergency Contraception "I am a teen, and if you are one too, you might want to read this if you're stressing and want to know how this works. I had sex with my boyfriend, he came in me with no condom. We bought Aftera about 1 hour later. My boobs were sore for about two weeks, it first started the day after I had taken the pill. The pain may get really bad, but just breathe and relax, it's a side effect. I got cramps here and there, but it would feel like a little kick to my stomach. Then I had spotting for one day. I thought I was pregnant because of the dark color, but that is also a side effect. Just breathe and let the pill do its work. Plan B and Aftera are the same thing, same ingredients. Don't dig through every website trying to see if you're pregnant or not, it's okay."

10 / 10
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  • jbu...
  • July 28, 2014

For Emergency Contraception "I took this approximately 48 hours after unprotected sex while I was ovulating. I felt fine after taking the pill. A few days before my period was due, I experienced major mood swings, bloating, cramps, and sore breasts. These symptoms lasted for the few days before I was due, and then the symptoms stopped on the actual day I was due. But no period. Needless to say, I was freaking out! (This is why I am writing this to help others from freaking) -- I was supposed to start on a Friday. Then Saturday rolls around, then Sunday and no period... Just really, really sore breasts on Sunday. That Monday evening, I finally started and had breast tenderness, cramps, headache, tiredness... But at least I started - 3 (longest days of my life) days late."

10 / 10
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  • jbu...
  • July 28, 2014

For Emergency Contraception "I took this approximately 48 hours after unprotected sex while I was ovulating. I felt fine after taking the pill. A few days before my period was due, I experienced major mood swings, bloating, cramps, and sore breasts. These symptoms lasted for the few days before I was due, and then the symptoms stopped on the actual day I was due. But no period. Needless to say, I was freaking out! (This is why I am writing this to help others from freaking) -- I was supposed to start on a Friday. Then Saturday rolls around, then Sunday and no period... Just really, really sore breasts on Sunday. That Monday evening, I finally started and had breast tenderness, cramps, headache, tiredness... But at least I started - 3 (longest days of my life) days late."

10 / 10
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  • Dou...
  • Taken for less than 1 month
  • June 25, 2021

For Emergency Contraception "I want to share my experience with this drug. I had sex on ovulation day (day 13 of cycle) but the condom broke and he finished inside me. I panicked because I was not using any regular contraceptive pill, IUD, or anything, and coming from a religious family, getting pregnant without marriage would be a disaster! So I took Plan B after 1 hour. I had mild cramps and a headache only after a few hours... then I developed panic attacks, but it could be from me being so anxious. Days after, my breasts were swollen, and I was very moody. I also had a mild headache. On day 18, I had major panic disorders, became very moody, and had crying spells. My breasts became sensitive and hurt a little. Of course, I went through depression thinking of what might happen if I got pregnant. However, I started having PMS like usual. On day 26, I had my period :)))))) Ladies, believe in this pill. It works. I know it causes a lot of anxiety, and this is normal. It's effective even after ovulation. Relax and let the pill do the job."

10 / 10
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  • Mpz...
  • July 21, 2020

For Emergency Contraception "My experience with Plan B has been stressful, to be truly honest. I have used this pill more than 5 times in my life. This year I used it like 3 weeks ago just to be cautious because I was not ovulating, but I was 5 days away from ovulating. I took the pill after 42 hours, and the side effects are awful. I have nausea, I feel tired, I have mild cramps, and worst of all, EXTREMELY SENSITIVE BREASTS! That got me thinking for the past 3 weeks that I might be pregnant, but my period has not arrived yet. I took a pregnancy test, and the results are negative. I know that my period will eventually show up because it isn't the first time I have experienced this. Last time I had very few side effects, and my period arrived 2 months late, so I guess this time it will also take a while, but this pill messes up your body big time."

9 / 10
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  • Anonymous
  • January 13, 2020

For Emergency Contraception "I wanted to tell my story to all girls who are going through a pregnancy scare. I had sex (WHILE OVULATING) with a guy I barely know, and the condom broke, and he finished inside me. I took Plan B within an hour. I was nauseous for 3-4 days, wanted to puke, didn't eat at all due to stress, had to go to the toilet more, and had light pain in the abdomen. After maybe 5-6 days after Plan B, I had brown discharge which was more like a medium period, but it lasted for 3 days. After 2 weeks after intercourse, my period should have started, but because of Plan B, I was sure it would come later than usual, and exactly after 2 weeks, I got my period symptoms: severe breast pain, severe abdominal pain, and mood swings. But after a week, I got my period, and it is so heavy like never before. So girls, don't stress like I did and just trust the pill, it really will do its job."

10 / 10
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  • mar...
  • June 20, 2021

For Emergency Contraception "It works. I got my period one day late. I took it after 10 hours of the deed. I was on my 8th day of my menstrual cycle and 5 days before ovulation. However, because I was afraid of risks, I took it since my app said my fertile window started. I knew the pill was working because I got acne the day after on my chin (hormonal), cramps, and sore boobs all the next 3 weeks. Mood swings all over the place. I was scared, so I took a blood test one day before my estimated period date and it came back negative. Two days after that, my period arrived. I feel very tired and painful, but I am happy to be out of this craziness. This page helped me a lot to not go crazy. I took Plan B 4 times in my life, and it always worked. Sending you good vibes and peace of mind. You got this!"

10 / 10
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  • ano...
  • Taken for less than 1 month
  • July 2, 2021

For Emergency Contraception "This has totally been the most stressful almost two weeks of my life. So, my boyfriend and I were having sex, and the condom broke, but we didn’t realize that it broke until after he finished in me. I looked at my Flo Period app, and I was two days past the main ovulation day but still in my fertile window. I immediately started crying and panicking, so the next day I went and got Plan B. We then realized on Google it says it won’t work if you're already ovulating, so I was even more freaked out. I didn’t have super extreme symptoms, but my boobs were sore and I had horrible mood swings. Not having that many symptoms worried me a little bit, but here we are, I just got my period twelve days after I took the pill and one day earlier than expected. Just remember that everyone’s body is different, and try not to Google things, even though it's almost impossible to do, it will give you major anxiety. Best wishes to everyone going through similar things."

10 / 10
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  • Ano...
  • June 5, 2020

For Emergency Contraception "Took the pill an hour after unprotected sex (he did not withdraw, I am not on birth control). I had period-like bleeding 7 days after taking the pill, which I assumed was my period coming early, but it only lasted about three days. I began to experience my usual period symptoms 10 days later (mild cramping, general achy-ness), but no period. My symptoms got SIGNIFICANTLY worse in the next few days. Extremely sore breasts, moderate cramping (constant), very light spotting. I had taken the morning after pill one other time in the past and did not experience any of these symptoms, which made me EXTREMELY worried that it hadn’t worked this time. My period FINALLY started over a week later (symptoms continued even after period came). This pill affected me physically and mentally. I was extremely anxious and most of my symptoms were not normal for my cycle. I promised myself to never take this pill again (yes, symptoms were that bad. I was absolutely convinced that I was pregnant)."

10 / 10
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  • Bee...
  • February 5, 2020

For Emergency Contraception "• 1/21 unprotected sex, no withdrawal, 1-2 a.m. (thanks, Wine) • Checked period tracking app. It was day 1 of my ‘fertile window’. Took Plan B 12 hrs later. • Cycle is irregular, so unsure when I was ovulating. • 1/27 spotting, sort of brownish red quickly changed to light pink. Not heavy enough for a tampon. Googled & thought this could be implantation bleeding. • Sporadic spotting continues for 8 days. • 1/29 INCREDIBLY sore breasts, very tired, aching and cramping in back and hips. • Most of those things are standard for my body with PMS (minus the spotting). • 2/5 Aunt Flo has come. Period is early. And heavy. Definitely no longer spotting. 2 weeks stressed, convinced myself I was pregnant and symptoms were coinciding with that. I took 4 pregnancy tests. I lost sleep. I read like, 40 pages of reviews on this website. (What a psycho) Don’t be like me. Trust this medicine and your body."

10 / 10
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