I can't blame my SO for not wanting to have sex with me, but that doesn't mean it doesn't hurt

My boyfriend barely touches me now that I'm more noticeably pregnant. He's tells me it's because our daughter is inside of me but when I wasn't as far along, we had sex a good amount. Wasn't a lot but about 3 times a week. Every other day usually. Now it's like once a week. I'm 8 months pregnant. His parents are out of town and he's had sex with me one time. And I thought oh it's because he has to get up for work the next day and he's tired. today's Saturday and he doesn't work tomorrow- nothing still. It really hurts. I looked back at old pictures of myself and I miss my body. I've gained 26 lbs, but my skin is covered in stretch marks and my boobs are no longer perky. I obviously have a big belly now but that's not the biggest issue besides that it gets in the way. He just makes me feel so ugly because he never compliments me anymore. I love that I'm growing a life inside of me but I just want to feel pretty again. We have talked about it but he just denies that there's any issue.