Multiple moveable lumps in jaw

I'm getting worried because I'm 19 weeks pregnant and have discovered multiple moveable lumps on my lower jaw on both sides and one just to the side of my chin which is small but painful. some are big and some are smaller and I can literally move some of them from the top to underneath my jaw and back up again. They're slightly tender mainly when I've been prodding at them for a while.

I have made a doctors appointment but my doctors are so booked up at the moment so everytime I go to make an appointment they tell me not until next week and it's worrying me that it could be cancer...

Other strange symptoms are extremely dry lips that are red and swollen, weird ulcers and a croaky voice every now and again and a new dark spot underneath my nipple and I still can't see a doctor about any of this and I'm thinking if it's cancer has it spread. 

i guess I'm just looking to see if anyone else on here have the same lumps or is this really rare?