Oh sweetie.....Stop crying u are making me sad too!!! And I hate cheating boyfriends who will become fathers.
ok, first, let's look at why he would cheat? Well he is a human being, he is a guy, he has sexual needs, and his woman is preg!
Have u been emotional even since ur preg? Have u been withholding sex becoz of the pregnancy? Have u changed since being pregnant?
All these things might trigger him to the road of cheating! But it's not an excuse for him to cheat on u though.
And have u talked to him or confronted him yet? My guess is no. So before u confront him, I think u should calm down first for ur own sake.
Now no matter what his reason is to cheat on u, are you going to take him back or break up with him? And please really think about this, becoz I just wanna tell u that u can survive without him, and the baby can survive without him too. So if you have lost trust in him and know that it cannot be recovered, then do not stay with him for the child's sake.
I am here for you if u need more help and sweetie, not all men cheat, so maybe u will find a nicer, better guy in the near future