Once a day keeps the doctor away
Those desires might lessen for you as you're further along. During those middle months some women have those hormones asking for it strongly but in the last weeks you might feel ok going without and just looking forward to getting your normal sex life back after baby comes.
My husbands not afraid to hurt the baby but afraid to hurt me lets just say sex has alot less passion latley
My husband also felt uncfortable but i convinced him to do some research and talk to our doctor. He is alright now knowing hes not going to hurt the baby.
I had that problem my first pregnancy, my husband didn't seem bothered but I was. I think it is a common thing to make one or the other uncomfortable. But dont worry future pregnancies those fears usually go away :-)