Just had a doc appt. He said that having my heart thump in my chest is normal and not to worry. Fundal height is right at 18.5, so pretty good, uterus is only a finger width under my belly button! I have already gained 13 lbs, which seems a little much. The doctor didn't say anything directly about it, just asked if I'd had cravings or any questions about nutrition. Hmmm. Not gonna let it bother me, my belly is nice and round...