Can someone tell me what heartburn feels like?

Amberlynn
I am getting some awful pains in my chest these last few hours that seems to travel between my chest and upper abdomen a bit.. I have no idea what it is. I am 32 weeks and have never had heart burn so I'm not sure if this is it or if something else is happening... I have burped a few times which I never do. Sorry if this is a really stupid question 😂