Burning sensation, possible nerve pinching under boob????

So I’m 38w and ever since about a week and a half ago I experienced what feels like a slight burning sensation in the area right under my boobs and where my uterus is and is either on the left or right side lasting 5-10 minutes whenever I feel it. I forgot to mention it to my doctor when I had a check up the other day. But could it maybe be a nerve she’s hitting?? She moves normally still and I don’t have any contractions. FTM so just don’t know what this could be.