Sexually Frustrated

My husband and I recently got married in May And I was pregnant in July. I feel like since I've been pregnant our sex life is non existent, like not even once a month. He will give me head once in a while but not as often as I would like. I'm constantly catching him jacking off and it makes me feel bad. I feel like he would rather jack off than touch me. I've brought it up and he says it's because he's so tired all the time but yet he stays up all night playing xbox. When we do have sex my stomach cramps really bad after ...so maybe he gets nervous he's hurting the baby? I don't know...but giving/receiving head doesn't hurt my stomach we could atleast do that!  Am I being hormonal or would this bother you? I just feel like satisfying me isn't his priority and I would love to satisfy him BUT he comes home from work, eats dinner, and plays xbox until he goes to bed super late and by that time I'm already knocked out 😣