advice please !!!!

Tyffany
Background I peed into a cup to take a pregnancy test. (Cup was completely clean I checked before peeing) and when I empty out my pee this was at the bottom. Looks like discharge but it's very thick and clumpy. Supposed to have period today. Text was digital and said not pregnant. Still feeling like crap and then I see this. Advice please !! ( no itchif or weird smells either