Tums is my salvation too :0
I have had heartburn twice ever, and not while pregnant, and my first daughter had a ton of hair. In the hospital everyone was like "you must have has so much heartburn" but nope.
I've always suffered terrible heartburn and I've had 2 bald babies! They were so bald in fact that neither of them needed a haircut before being at least a year old. My daughter is 5 and she has only ever had 1 haircut, and that was last year! I've had loads of heartburn again this time and will be shocked if this baby actually has hair!
My first daughter wasn't hairy and had alot of heartburn. My second daughter was very hairy and had alot of heartburn. My third daughter wasn't hairy and still alot of heartburn. Fourth pregnancy now...and alot of heartburn. Tums was my salvation.