Husband thinks I'm unattractive

I'm in my 30 weeks now, and we haven't have sex for more than a month alr. Our sex life was as normal as once per week or two weeks even when i am in my second trimester. I thought it would be me who have a decrease in sexual desire but it seem like he is the one. I kept questioning why is he behaving weirdly. My insecurities instinct made me asked if it was my ugly breasts and tummy... After a few times of questioning, he answered yes. I have really low self esteem and really felt insecure about the changes in my body, and he made me felt like I am disgusting and ugly. What can I do.... Is it normal for a men to think that their pregnant wife is unattractive?