I can’t do this anymore

I hate pregnancy and I don’t want to be pregnant anymore but I feel so bad for feeling this way because I love my baby. I’ve always struggled with anxiety and very low self esteem and it got worse during pregnancy. My husband knows that but I found out he’s been cheating and he said it’s not a wrong thing to do since I’m not sexually attractive for him now that I’m pregnant. And he blamed what he did on me, for this reason. It just made me feel even worse and I can’t stop but having this super negative thoughts and I’m scared of them and I feel guilty because I love my baby and if anything happened to her I would be devastated so I don’t need this stress and these thought but I can’t help it I feel so miserable. And I’m scared of my own thoughts and feelings.