having my last period of nov 24 ended on 29 after that having intercourse but he pulled out,after that 1 day later take the plan b then having intercorse again the nextday but he pulled it out again!!! do i have a chance getting pregnant? i hope not,but i have feeling the tiredness light cramps and headache,i wondering when is the plan b works and how long it gonna works?
Plan B works by delaying ovulation. Given that sperm can live inside a woman for up to 6 days, & that you would have been approaching your most fertile time of the month (ovulation), you will be relying on the Plan B to be in time to delay things.
The Manufacturer of Plan B (Pfizer) state that Plan B 'may' work to prevent pregnancy in other ways, but this has not been proven.
The manufacturer states that Plan B does not cover any unprotected sex after you have taken the drug, so they do not guarantee you will not get pregnancy for the time you had sex, after you'd taken it.
With respect to the unprotected sex you had prior to using Plan B, the drug is more effective the sooner you take it. If taken within the first 12 hours after unprotected sex, Plan B is thought to be around 95% effective. By the time you are at the latest possible time to take Plan B (72 hours) it's effectiveness has dropped to around 75%
After taking Plan B, you might bleed, & it could be heavy or just spotting. Not everyone bleeds.
You are likely to get a lot of hormonal symptoms after taking Plan B, such as those symptoms you get from a period or pregnancy (things like fatigue, nausea, bloating, breast tenderness/leaking, spots, mood swings, cramps etc)
It is possible that your next period will be late. That is also a side effect of Plan B.
There can be sperm in pre-ejaculate (pre-cum) & so you can become pregnant, even when your partner withdraws/pulls out before he ejaculates (cums).
It is possible that you could become pregnant from the unprotected sex, despite taking Plan B. Hopefully it will protect you.
It's impossible to give a percentage/exact chances, but you can do a pregnancy test once if you don't get your period on time, & you'll know if it's just the Plan B delaying your period, or whether you have become pregnant.
- Plan B Information for Consumers
- Plan B Information for Healthcare Professionals (includes dosage details)
- Side Effects of Plan B (detailed)
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