Braxton hicks?

Ceaira
I am 30 weeks and 4 days pregnant with my second child. My oldest is 4. Today I've been having pains in the bottom of my stomach upper vagina area, because my son is 4 I don't really remember my pregnancy with him. Could this just be Braxton hicks, is this normal? Should I contact my doctor. I don't go back until June 20th.