Feeling extremely unattractive right now.

Dom💕

I'm currently 36 weeks pregnant with mine and my fiances 3rd baby. My fiance complains about us never having sex but for the last week I've tried initiating sex and he just completely shuts me down. We haven't had sex in weeks and he keeps telling me that he's going to get me a dildo but honestly I'd much rather have sex with him. My brain automatically jumps to the worst case scenario like maybe he cheated, maybe he's not attracted to me anymore, maybe he would much rather watch porn. Idk I'm just super pregnant right now and beating myself up about this.