White particles in urine, what is it?

Mo

Does anyone know what this is? It took forever to get a photo of it. When I took a pregnancy test two days ago (it was negative but I may not actually be due for another 2-3 days now), I noticed it. And I decided to check again and now there’s a squiggly thing! I have nausea, cramps, and back pain. Problem is...if it IS a UTI or anything requiring an antibiotic...I am royally SCREWED because (due to having C-Diff) I cant take antibiotics. Like...ever. Unless through an IV. 😫 Help Ladies? Anyone ever noticed this before?!

And yes, I made the cup of my urine a TMI because everyone is so sensitive these days.