I had unprotected sex with my boyfriend last night, and he didn't cum in me and he said if at the most that he had maybe a little pre-cum but he said he peed before sex. I took the after pill the morning i was able to but took it with an empty stomach. I threw up about 10 hrs later due to feeling nauseous. Does this mean the pill didn't work? We had sex on my last day of my period.