Pregnancy gives her boyfriend pause

You might as well get a paternity test.

In addition to the trust dynamic between you, if you don't continue together as a couple you will need to establish paternity to establish this father's rights and responsibilities.

This is a serious and very obvious expression of a lingering hostility between you.

Despite your boyfriend's statements that he wanted to put your infidelity behind you, it is very much in front of you now.

You two should mediate this with a professional counselor.

If he isn't able to forgive you and move on, then you won't be able to have a loving relationship.

It is also possible that he is not as excited as you are to be a parent; this might be his way of throwing roadblocks in the way and ending the romantic relationship (or trying to end the paternal relationship) on his terms.