Indigestion & heartburn

I’m at week 20. And lately I’ve been having indigestion and heartburn hours after I eat (I eat small portions every meal and I let the food digest about 1hr before lying down) even so, I still get it almost everyday… and sometimes even with the indigestion and heartburn I feel hungry and have no choice but to eat again 😂 any suggestions on how I can relieve the heartburn and indigestion?