WHAT IS GOING ON

Stephanie • Thu, Aug 24 • Boyfriend: 12/29/2014 - Forever :) Baby Boy - 09/25/2016 and pregnant with baby #2 due 11/20/2017

Is severe heartburn and chest pain right before a contraction normal? 27w 3d. I was prescribed pills to help stop contractions 3 days ago but they didn't relieve any pain last night or this morning.