Pain in lower abdomen- help!

Katherine
I am having pain in my lower abs. It feels like I've been punched in the gut or done an intense core workout too many times in a row. God help me if I sneeze! Then it's an awful pain as I contract those muscles!!! Is this normal growing pains for my uterus or should I be worried? I am 10 and a half weeks along with my first. Anyone experiencing the same thing?