Insecurity and sex with my husband

Sooo I’m usually confident. I get real insecure sometimes but I don’t let it get to me too much. My husband helps me feel confident and beautiful. I am getting better but lately I’ve been noticing that I’m not so confident anymore in bed. And this has been particularly happening as it got later into my pregnancy (I’m 36 weeks now)..but the thing is I’m not that insecure about how my pregnant body looks..I just get insecure that I don’t know what I look like when I’m having sex and Then I start to feel not as sexy..it’s really hard to explain. Like afterwards I’ll look at myself and be like why was I freaking out I look fine! Has any other pregnant women went through this??? I feel like I wanna rip my hair out because I love my man and I don’t wanna be all awkward during sex