8 months pregnant and my husband was going through photos of his ex half naked.

I'm just so upset, how can you tell someone you love them and be doing things like that, it just makes no sense. I'm 8 months pregnant next week and I seriously don't know what to do anymore. This isn't the first time something similar to this has happened, only its with porn... Or him beating off to one of his friends FIANCE'S photos (I found this out the day before my birthday, when we were only 8 weeks pregnant and less than a month married!) We've been married for 6 months and I'm 8 months pregnant and it's like, the more I have to deal with this... The more hurt and betrayed I feel, and the more disgusted I feel, and the more insecure I feel. Please help. I'm seriously about to give up... I have no place to go, I just wish I could stay somewhere else for a few days. Sorry for posting this in the wrong place, j just don't know where I should post it :(