My husband doesn't seem to like me now that I'm showing

I am currently 19 weeks pregnant. Since I’ve started showing my husband doesn’t show me any love or affection, we started sleeping in different rooms. He said we need to spice up our marriage in the bedroom and every time I try he rejects me then later on watches porn. I’m so proud of my bump (I didn’t think I’d ever be able to have another kid after an accident and doctors told me I couldn’t.) But he makes me feel fat and disgusting. What can I do? Please help