Need some advice.

So let me start off by saying I’m 24 married for 5 years. I’m currently 11 weeks pregnant. Well I don’t need rude comments I am already going through a hard time with this all. Well I used to live in a small town and I have bipolar disorder. And I was going through a really hard time at this time. It was 2 years ago. And I cheated on my husband. I didn’t mean for it to happen but it did. And I can’t take that back. But all I can do is apologize and make sure it never happens again and it hasn’t but I’m so scared my husband is going to ask for a dna test after the baby is born. He hasn’t given me any Indication of doing that but I’m just scared it’ll will happen. I just need advice. I’ll give him whatever he wants. I just don’t want him denying our baby. I swear on my whole life it will never happen again and it hasn’t. But my husband is a great person. I’m disgusted with myself still and I feel I don’t deserve to be this Babies mom because I did this to my husband, my life. Everything. 😢😢😢 I just don’t know any advice would be helpful.