Seriously heartburn... Can you not?

So I ended up calling my doctors office about the heartburn because it's seriously driving me crazy. It's to the point where I feel like throwing up because the acid is just sitting at the base of my throat and tums isn't really cutting it right now. All the research I found online said it could be the Endometrin but I wanted to check and the nurse and doctor both said it wasn't the medicine. That if it continues I needed to call them because it isn't a known side effect and I may need to get on something if it's getting worse. In the back of my mind I start thinking what if it means I'm pregnant. My mom said her first signs of being pregnant long before her positive test was heartburn and it was the same way with my girlfriend Jessica when she was pregnant. So now that is messing with my mind lol! My boobs are gigantic and super sore and swollen which is normal for the progesterone and  so is the cramping and bloating. So basically everything but the heartburn is from the medicine. Other that I'm feeling really great! My head is in a good place and I'm looking forward to my beta test but I'm not feeling stressed about it. I know that it could go either way but I'm really not going to fall apart if it's negative. Maybe the last 2 years of heart break month after month has started to make me numb or maybe I finally have found peace with my infertility. I know that I have done everything I can to try and make this happen and there isn't anything else I can do. It's in God's hands know and I just need to wait and see what he decides. I'm just lucky that I have gotten to experience motherhood once and have a gorgeous and smart 4 year old and for that I know I'm a lucky lady.