feeling bummed

Sorry if this is TMI for some people...so I'm 16wks 3 days pregnant & have had no sex drive since I found out. I feel bad for my bf cuz we used to have sex everyday. Like twice a day. & now nothing. I tried to give him head & of course I just wanted to barf my brains out while doing it. I don't know what else to do :( he says it doesn't bother him at all because he knows I'm going through enough with the pregnancy & he's never been mean or anything to me about it...I just feel bad I can't please him sexually 😔 I'm hoping my sex drive comes back soon. Any advice would be greatly appreciated.