Coming up on our first anniversary in two weeks

Coming up on our first anniversary in two weeks but I'm finding it hard to have a reason to stay.. about a month ago I found out my husband had been talking to other women for some time. I found conversations with two different women. He doesn't talk about it at all. I then gave him an ultimatum that it was either me or his friend and my MIL told me that the friend was sticking around.. But now more than ever I feel so self conscience around my husband. I hate the way I look and the way I feel. So much has been on my mind lately. Like the fact that he refuses to take any pictures with me. Whether it be me taking the pictures or someone else. And to top it off my doctor has said "No sexual activity". So now I don't even have that to keep my husband interested. I have talked with my mom and she would be willing to let me and my five year old move back in with her even though I'm due with my son in November. I'm finding it really hard to pretend to be interested in furniture shopping for our new house we will be getting in mid October. Or even finding the perfect placement for it on our property. I have no opinion on anything for the house now. I don't want to think about how to decorate the kids rooms or even my own. We are scheduled to go to marriage counselor next week but I just know when it comes time to go he won't do it. I have decided that if I'm right in thinking so I will be leaving a week before our anniversary.