Try switching to a prenatal that does NOT have iron plus a slow release iron pill (Walgreens has them on the shelf). Also, the Alka Seltzer chews worked way better for them than Tums and other brands. The old wives tale is the more heartburn, the more hair the baby has and holy crap my babies were both born with LOCKS of curls. They say you forget how bad pregnancy symptoms can be. I did NOT forget how god awful my heartburn was. Hang in there!