Pulled muscle?

Grace

I think i pulled a muscle getting out of bed. Im 21 weeks pregnant and was sitting up to get out of bed and felt the weirdest almost “pop” like feeling in my belly on the right side of my belly button. It didnt really hurt it was just a really weird feeling idk how to describe it. I did it again just rolling over in bed. Now the area hurts and it hurts down near my underwear line. Should i be worried? Left a voice message for my doctor.