I'm 19 weeks with my second baby and think I'm already having Braxton hick contractions. I had them early with my first but not this early! I keep feeling what feels like baby curling up in a ball and lots of pressure in my tummy. It also comes with a wave of nausea. I was very nauseous and threw up during contractions while in labor with my first. But with my first I could touch my tummy and feel it hard during BH, and not this time. Maybe just because I'm not showing as much yet? I also have partial placenta previa. Should I be concerned??