Jaw pain while pregnant ?

Even before I conceived my jaw would get sore if I chewed gum, opened my mouth extremely wide, and it always has popped after opening past a certain point. It never bugged me unless I chewed him for a long time. I am now a little over 7 weeks pregnant and from about 6 and a half weeks until now my jaw hurts for no reason at all. If I talk, eat anything, sleep on my face, I'm in the worst pain. I have my first appointment on Monday so I'll ask my doctor if it could be pregnancy related. but I'm wondering if anyone else has experienced something like this?