Pain and tenderness under right breast

Janice

I'm 27 weeks pregnant and have been feeling pain and tenderness under my right breast. I have called the on call doctor a couple of weeks ago, he said probably acid reflux. Now it's a little worse and more constant than before. I personally don't think it's acid reflux. Anyone else have this or any idea? No other symptoms, just the pain under my right breast and it feel tender to the touch. Seems to be worse if I'm on my feet for the day.