Hi!! I hate that I even have to post this but I need some input. I am currently 6 weeks 1 day pregnant as determined by an ultrasound today. It is considering my conception date as 12/29. I have not had a period in months so I don't have a LMP to compare dates. I slept with #1 guy from 12/1-12/29 and he came every time. I slept with #2 guy on 1/1 and 1/3 but he did not come in or outside of me. I then slept with guy #1 again 1/4 up through today. Is it possible for guy #2 to be the father not having come in me and with those dates? Or is guy #1 definitely the father?