I had this with all pregnancies and it didn't subside til after the baby was born. I used quick eze which is a peppermint lollie form of antacid. Disgusting really but I use to hold it under my tongue and suck when I needed it. There is a new one out here called tums and they taste way better but they didnt come out til my last pregnancy!! Ask at your local chemist but really it's just part of pregnancies with some people unfortunetly!
Oh @ TOC, were you wasted the other night and left your pic up?? Heee I was and somehow I copied it to my photo album on my phone and when I was scrolling through showing someone pics.... There you were! ??