Did you forgive 100% or do you regret staying?

Did you forgive 100% or do you regret staying?Sorry if this brings up bad memories...
I'm pregnant with our first baby & my husband is normally a beautiful man that I trusted with my with my whole heart. He has recently betrayed that trust sexually/emotionally. 
I'm just wondering if anyone has been in a similar situation & if you left/stayed did u regret your decision. I just don't know if I'll ever be able to look at him the same way or trust him again. I already find it hard to trust people. If you did stay & are happy how did you "get past it"? I don't want to be thinking of this throughout our whole relationship I don't think that's healthy & I don't feel I'll be 100% happy but I also don't want to do the wrong thing by my baby girl she will love her daddy. He will be an amazing dad I just know it. TIA