My hubby and I just started TTC. It's our first month trying and on day 26 of my cycle we had sex with a much younger guy (hubby is 38, I'm 30, and new guy only 19). I just tested positive 1 day before missed period. I don't think new guy came inside me, but we didn't use protection, so no way to be 100% sure. What are the chances I got pregnant from the new guy? Hubby did ejaculate inside me at least 4 times that night. I don't think I would be fertile on day 26, but I know it's possible. DNA paternity testing can't be done til 8 weeks.. hubby and I are worried this young guy's sperm might have done the trick?