Pain and tightening in my abdomen

I am 30w1d today and for the past few days I have been awoken by a sudden pain and tightening feeling in my abdomen. The best way I can describe it is like a leg cramp where it's locked and just intense pain that you have to just ride out for a minute or two. I have also been having pains during the day especially when I've been walking a lot, but never as bad as the ones I experience when I'm laying in bed. Are these normal feelings for this time? I was thinking they could be Braxton Hicks, but I've done a quick Google search (something I usually try to avoid lol) and everywhere says they are typically painless. This is my first pregnancy and I'm trying to not let myself get too concerned... But I also don't want to write it off as nothing if it is something I should be contacting my doctor about.