he just wants his 🍆🍆sucked

So almost everytime we're intimate I always go down on my husband, I know that's what he likes it's never been an issue until recently. I'm 7 months prego and completely turned off from going down on him it has a funny smell,the body wash has a nasty taste etc. i have explained this to him as well. I would just rather have sex bc going down on him makes me gag. He really acts like he has to have head before sex everytime, while he's getting aroused I'm drying up from disgust. He got so upset bc I didn't want to this one time mind you I have been doing it despite the issues listed above but just couldn't this time. Am I wrong for this? Is he wrong and should be more considerate? I mean I do it all the time never ask him why he doesn't go down on me.