Braxton Hicks?

Abi
I've been feeling braxton hicks contractions since about 28 weeks- not painful ones just tight and uncomfortable. I am now 33 weeks and today I started getting cramping pains around my lower back and abdomen lasting a couple of minutes and they sort of come every 3 hours.. Are these just my braxton hicks intensifying as I get more pregnant or should I be concerned? 😂