P.P.
RUN to another OBGYN asap. Please do not wait another month. The same thing happened to me and after the sonogram showed a mass, I had a hysterectomy three days later. My bowel had become attached to my tubes and uterus and I had a benign cyst. Glad you are going to your primary care doctor. Trust your instincts and find another OBGYN. You may not need a hysterectomy (don't want to scare you), but it needs to be checked asap. Let us known what happens.