Bad vaginal taste…

Okay about to be REAL personal. And I need to know if anyone else has had this issue since getting pregnant. My boyfriend stopped eating me out since getting pregnant and he would give me lame reasons as to why. Just that it hurt his jaw or that he didn’t feel like it etc. Which is fair. Giving head hurts my jaw too sometimes and I haven’t been able to since the gagging issue of being pregnant. But anyways, I kept pestering him on it because it isn’t usual for him. Beforehand he really liked to do it. And he finally told me… that I don’t taste like I used to… in a bad way. He didn’t want to tell me because he didn’t want to upset me but it instantly hurt my feelings because who wants to hear that, especially while pregnant. But anyways… I finally saw what he meant.. this is where it gets even more so TMI and NSFW so beware.

We were having sex and decided to change positions. I got him wet again with my mouth after he had been inside me and oh my god… the taste was literally awful. Like so so salty and creamy and just EW. That’s the only way I can describe it as super salty. Has anyone else had this issue and do you know why this happens?? I absolutely will NOT be asking my doctor lol. It isn’t a taste like I have something wrong with me like an infection or anything. I definitely know it’s because I’m pregnant but I want to know why it happens. Because wow, it is not pleasant lmao