Constantly peeing myself-worried

39 weeks. Have been peeing myself for about two weeks. Even when I don't feel like I have to go, I can just be sitting there and it leaks out. It gets worse at night, to the point where if I stand up it gushes out.  I had a bad uti and I assumed that was the cause but it was treated. I was having contractions then those turned into irregular back contractions. Not sure if I should be worried and go into l&d. I've already been there three times, all for thinking I was leaking fluid when it was actually urine. Not sure if I should go in to be checked and demand an ultrasound or just assume I'm stuck peeing myself for the next week or two. Kind of embarrassing to be the girl who keeps going in because she keeps peeing herself.