Contraction?

Amanda
Hi! So I'm 32+3 weeks. And when I was driving tonight, I got a really bad hot flash and then my stomach got tight and I had a really bad pain in my stomach and horrible pain in my back for about 6 minutes and then it went away? It completely took my breath away and was way different than Braxton hicks I had experienced. I'm a FTM. So sorry if this is a dumb question