He won't have sex with me?!

Leah
Hi ladies I'm 21 weeks pregnant, me and my husband have and amazing relationship so much love for each other and had a great sex life but.. Since I became pregnant he will hardly have sex with me in the whole 21 weeks think we have had sex around 8 times and before it was twice or more a week he says it makes him feel sick and uncomfortable knowing the baby is there and it's driving me crazy! My sex drive has gone through the roof since being pregnant and he won't touch me!!! Any ideas how to talk him round I've explained it's perfectly fine won't harm the baby but he still won't have any of it x