Why am I so huge for 30 weeks!?

Lillian
I went to baby bootcamp the past two days and I was one of like two girls that was less than 32 weeks. And I was the biggest one there! My doctors haven't told me anything about my babies measurements or how big she might be so idk anything other than I'm literally a freaking whale. I'm so depressed I want to cry. I've never been more than 150lbs at 5'6 which is damn good cause I was very active and now I'm 200!!!! What is wrong with me!?