cm? (tmi picture)

hi so this is gross so I'm sorry but what kind of cm is this. I need to take a test but it slipped my mind this morning so I'll do it tomorrow. anyways I was peeing and then scrolling through eve sitting there because I felt like I needed to go well nothing got a tiny twinge/pulling feeling right in the middle of my uterus and then felt something. I wiped and this came out. same thing happened yesterday. the res of the day it's noting but clear and thin until I get another twinge/pulling pressure like feeling. it's hard to see but there was streaks of cloudy white in it. I don't have an infection or STD btw.