I get terrible heartburn when pregnant (and at no other time). I use: Tums, Zantac, and now Nexium. Nexium is just barely working. I usually pop a Nexium and chase it with 2 Tums before bed, and I still wake up gagging from reflux in the middle of the night. Not that you needed to know that much. My point is Tums are fine. Kristan, due with #3, 11-1.