I had this problem with my second, third and fourth pregnancy to the point where it would take me more than an hour at night to be able to squeeze out a tiny bit of pee. A former member here mentioned to me that she had the same problem and her doctor showed her how to catheterize herself and she did that for several of her pregnancies. When it started happening with this pregnancy I called my doctor and told them I wanted some catheters and they said it was no problem and to come in and get them.
It is easy as pie to cath yourself. Seriously, a catheter is about six inches long and as wide around as a small crochet hook. If you can find your urethra, which is just south of your clitoris -- I did need a mirror to find it easily at first to insert the catheter -- you can cath yourself. All you do is wash your hands and vagina, put a bit of ky jelly on the end of the cath, and insert it only about an inch and a half or two inches until the urine starts to flow. When it stops, you remove the catheter. I kid you not, there is nothing to it, it doesn't hurt, and it is so worth not feeling like you have to limit fluids or set an alarm to make sure you don't sleep more than two hours (both of which I did in prior pregnancies.) For everyone dealing with this, get yourself some catheters!!!!!
BTW, my uterus is also tilted and for me, the urination problems lasted about 3 or 4 weeks until my uterus moved up and out of my pelvis.
Get the catheters ladies, I can't emphasize enough how easy and worth it, it is.
If you have any other questions, feel free to ask.