Medicines?? Please Help!!

C
It seems some of the medicines I swore by in my previous pregnancies are now either linked to birth defects (sorry if I recommended them to you ladies, I didn't know!) or do not work for me any longer. I'm desperate for some medicines that work for heartburn and nausea. I have yet to see my doctor and have not received a "safe list" yet. I'm 7 and a half weeks with my third. Thanks in advance!