Had sex with my bf the condom slipped up a little their was pre cum (no full on cum) but he slid it back down and we finished now before you think anything bad the condom was very tight on his penis so it's as if when it slid up the pre cum slid up with the condom and didnt leave the bottom of the condom then 13 hours later I took plan B so am I alright should I worry about me being pregnant considering the condom kinda didnt really fall off or come up to much and that I took plan b so quick also my period is coming this Friday should I be worried I took plan b may 3rd and my last period started on the 18th of April. Let me know please. Also he peed literally like half hour before we had sex. My period did come 2 days early on the 15th of may does this mean I'm ok or i don't know what to think please help me am I good with all the circumstances?