Pre-labor or bladder infection?


For anyone who has given birth already and have also had a uti in the past:

Would you say that the feeling could be similar? I'm 42 weeks today and I have been having a persistent lower back pain and an ache in my lower abdomen since early yesterday. I pee quite often and it sort of hurts my gut when I go, comes out very dark, and yesterday it would sometimes smell odd. At first I thought the pain was Pre-labor symptoms because of how far along I am, but now I sort of have a hunch that it's a bladder infection? Not sure, as I've never had one.

I don't see my doctor until Wednesday, and the clinics aren't open in my town today or Monday, so I don't want to make the long drive and wait in the lineups at the hospital if it sounds like nothing!