I'm pregnant and my due is on Oct 27, 2015. I had sex with two guys. The 1st guy was Jan. 28 and the 2nd was Jan 31, and Feb 4. When did I get pregnant? Can you please tell me who is the father? I have 29 average cycle. When did I ovulate?

It is impossible to know or tell, until child is born and you do a DNA test.

At best you can get a conception date to give or take a week. Sometimes even two week. So there is no way, you can tell, within a few days.

Sorry, no one can tell you, till paternity is tested

No way to know who the father is with your sexual encounters so close together. You will have to have a DNA test done after the baby is born.