My boyfriend and I had unprotected sex the last day of my period which lasted six days and I took plan b less than 24 hours later. Six days later, I started bleeding again, as If I was in my period again. I am afraid it might mean that I'm pregnant. I took a pregnancy test six days after sex, and it came out negative, but I believe it might be to earlier to detect. Today is the seventh day after sex and I'm still bleeding as if I was in my period. Could that mean that I'm pregnant or that I'm not pregnant? My usual cycle is 28 days, I'm 17 and my boyfriend came inside of me.