fiancé wont have sex with me..

I'm 32 weeks pregnant and its been a good month or so since i last had sex. I'm not very big or uncomfortable and sometimes I just want it, but my fiancé either says hes too tired or hes weirded out about the baby.. it makes me feel so unwanted and I just want to feel sexy somehow. Its putting such a strain on the relationship. He says everything will go back to normal after the baby but i feel like at that point ill be the one not wanting it...🙁