What could this be?

Cori

I have symptoms of a UTI. The urge to pee so badly, but when I pee it’s only a little bit that comes out. So right now before I would take a shower with my son (I don’t need rude comments about taking a shower with my son that is 2 years old) I went pee. When I whipped I noticed the toilet paper had a very light pink undertone. What could this be? I ended my period on December 9th and My boyfriend and I had sex on December 13th unprotected if that helps. I’m also cramping like period cramps, but it’s not as bad as period cramps if that makes since?