So on Tuesday, March 29, I had sex at around 1:30 and the condom broke. It was my first time as well so I was absolutely terrified. About 5-6 hours later I managed to get my hands on the Plan B pill but it says it's not as effective for women weighing over 75kg and I'm 77kg so I'm freaking out. Lately I've started feeling a pain in my lower back on and off, along with cramps and diarrhea. I didn't feel any symptoms of the pill I don't think, but I'm expecting my period in the next 3-4 days. I'm just really freaking out and I'm so nervous, I can't get my mind off this. What should I do? Do you guys think I'll be okay? I called the kids help line and they helped me figure out that I had most likely already ovulated before the incident and they said that is also in my favour, is that true?