who could it be

hello all, first i want to thank everyone on this site for posting such useful info. My question is a bit taboo, but i was dating a man for about 4 months, and he could not ejaculate at all. He would get tired, pull out and fall asleep after an hour or so. I am aware of all the info available, and when he went to see a doc, the doc said h this is what he had, and it shouldn't be a problem until he wanted children. So here's my dilema, women ovulate 12-14 after first day of period, which for me would be the 27th of oct, and i would be ovulating on the ninth and tenth, during that time, i had unprotected sex with an ex and he did come inside me, on both days. I also had sex with the guy had been seeing a couple days after.....but of course he didn't come. So my question is....it would obviously be the ex..right? i am not sure if there have been any instances of women getting preggo from pre come by a man with retarded ejaculation. can anyone help me?

it sounds like the only way to find out who the father is is to have a DNA test after the kid is born. ... assuming that you are pregnant