First of all, congrats to you!

I hope you are taking good care of yourself!
Though I must say, i was concerned about the reason you broke up (because he was accusing you of cheating using the weirdest piece of 'evidence'!) Thats really awful and quite immature.
He's shown that again when you told him, straight up, that you're bearing his child and he
still wont take your word for it!
This makes me think thats his problem yknow? Youve admitted to it. He didnt believe you. If he asks again because he is doubting you, tell him. (But you shouldnt have to start chasing him around town throwing a doctors certificate in his face to convince him).
But you did do the right thing because whether you two are on good terms or not, its still his baby as much as yours. I had a friend that had an abortion - she didnt even tell the guy that she was pregnant in the first place. Its something that ive never been able to get past...
And of course, now that there is a baby thrown into the equation, you need to start thinking for the baby and base your choices around his/her needs.
Ive seen this situation before... and it actually bought the man and the woman closer together because they were both caring and nuturing for this child - as a team..
But remember, youve thrown the ball into his court. Youve acted responsible and told him. But if he is shallow and childish enough to accuse you of lying about it, then distancing yourself from that behaviour will make sure you can enjoy a comfortable pregnancy. Make sure you surround yourself with friends and family.
Best wishes to you
