( I had a falling out with my boyfriend ) My last period was June 20. I had unprotected sex with my ex July 1 & 2, but he did not finish the first time. The second time he pulled out far before anything even came out. My boyfriend visited me the 4 - the 7 of July. And we had unprotected sex multiple times and we used the pull out method, but he isn't the best at it. AND that's when I am ovulating! My due date is March 27.  I am worried though and it's hard for me to concentrate on my pregnancy when I'm not positive who the father is.