What’s wrong with my tongue?

I brush twice a day, floss, and use mouthwash but I’ve been getting these flare ups on my tongue? They’ve started when I got pregnant and I’m 27weeks now. They kinda hurt but not really and They disappear after a few days. It just looks gross. I’m super embarrassed about it but I keep forgetting to ask my doctor. The only thing I’ve seen that looks similar is geographic tongue? Has anyone had this before and knows what it is?