We haven't had sex since September...

We have not had sex since my birth, 9/20... he thought it was weird that I had a baby inside of me. Well I had my daughter 4/7 and have had my birth control for a little over 2 weeks. I told him about it and asked him 2 weeks ago if we could have sex... he said yeah but hasn't come in to me. He has a history of cheating... am I stupid to believe that he went all this time without having sex and still doesn't want to? I feel unattractive and extremely frustrated. I'm not even sure how to go about the conversation anymore, I'm tired of being rejected but I can't be in a relationship with NO sex... is this weird? 
I already am super insecure about my body. It just really upsets me.