Oo normal talaga, lalo na sa early pregnancy dahil sa hormones at pagbabago ng digestion mo! A few of us first-time moms had it na parang heartburn or bloating around that time, kaya don't worry too much, pero if it's really bad or consistent, better check with your OB para sure lang at para ma-advise ka ng safe remedies. Drink lots of water, eat small meals, and avoid greasy foods muna, yun ang tried and tested ng maraming preggy friends ko.