Help! Idk what this is?!

Lora • TTC May 2016. Hoping soon! ❤️
I havent had a period since March. I went to the ob on Monday and she had me do a blood pregnancy test. Won't get the result back until tomorrow. She also did a Pap smear and everything was normal so far. She push something and I had very painful spasms on my left lower abdomen. Went to the er last night and he did another pap. Everything was fine and on both urine test it said I was negative. Still haven't had a period and when I went to take a shower tonight I used the bathroom and wiped and this is what was on the tp. I did push (tmi) a little in to see if anything else would come out but it was just my normal cm. Can anyone tell me what this is?