Levonorgestrel
"I didn't find one review to relate to my specific situation. I decided to have sex while my period was still on, it was on the days where your period is almost gone and you're just leaking  a bit. The condom broke. I panicked because I'm fairly new to having sex. My Bf bought take action, I took it about 6-7 hours after the incident. I was worried b/c my period wasn't off so I knew I would have to wait exactly a month to see if it worked which was nerve wrecking. After i took the pill I bled for about 3 days, weeks after I was very bloated, had increased white discharge , and very dark brown spotting. Yesterday i got my period, exactly a month after taking the pill. Cramps were bad and my period is lighter. RELAX it works it just takes time"