I just found out I am pregnant. The last period that I remember for sure was September 21st. I had sex with my ex boyfriend after that (please don't judge me) a few times. I was afraid I may be pregnant then, but I started bleeding on October 24th. I assumed it was my period, but it wasn't as heavy as usual. Thinking that it may have been an implantation bleeding , I took a pregnancy test on October 29th, November 7th and November 13th. The reason for that crazy testing was the fact that I also had sex with my "current" boyfriend....but not till after that bleeding on October 24th. Could this baby be my ex boyfriend's? Wouldn't the pregnancy tests come out positive if that October 24th bleeding was in fact an implantation? Was it my period? Please help. Thanks.