If it's not going away and concerning you call your ob. Never hurts to talk to someone.
Definitely call your ob. Better safe than sorry.
I agree with these ladies, call your ob. I had a lot of sharp puns in my last pregnancy, found out it was due to a small 1cm fibroid that grew while I was preggo to the size of a lemon. Always good to talk to your ob and get checked if it doesn't go away. Hope you feel better soon!