Menstrual like cramps 31 w and 4 days

Kk

A couple days ago, I've noticed I get some cramps off and on as if I was going to start my period soon. They don't hurt necessarily, they are just....there. The other day while I was working (I'm a server), that one was stronger and lasted longer than the rest. But none of them really last long. I get them maybe once or twice a day. Is this something I should be worried about?