Is it right beneath your bra line? Or
stomach? It could be lots of things at this point. I know I head really bad indigestion that resulted in stomach pain rather then acid reflux. I also know that our rib cages flare to make room for baby. Baby could also be lying in a weird spot across the top of your uterus, transverse. Ifs it too painful go to emergency and they can help. Sorry if this seems like a wishy washy answer, but if there are more details maybe we can be of more help.