I am confused about who may have fathered my child. I had unprotected sex (he pulled out) with a former bf in the middle of Feb, I had started unmy cycle March 22. I then had unprotected sex (he didn't pull out) on March 31 with a guy I had a fling with 3 yrs ago. On April 4th I started dating someone and had unprotected sex (he didn't pull out) on the 4th and 5th of April. On the 16th of April I was supposed to start my cycle and didn't. I took a hpt that night and the next morning, both read positive. My ex from Feb we had sex many times for 8 months where he would pull out and I haven't got pregnant, the guy I started seeing in April has had a vasectomy about 15-20 years ago, and the fling from March 31 told me that he went to a doctor 15 yrs ago and had his sperm tested and the test resulted in a low sperm count. I believe I conceived on March 31, but could I have gotten pregnant in Feb and still had a period in March, or could I have conceived in April... Please give me your thoughts.