Dose anyone know what this is???

I’m about to get my period yet I’ve been having really bad cramps for the past week or so , I decided to check on where the cramps hurt the most and I felt this weird lump about 2 inches inside. It dosent hurt or anything yet I can put my whole finger around it and it’s kinda stuck to the wall. It’s about the size of a grape and is kinda in an almond shape. I checked after and there was a little bit of blood from around it. Dose anyone know what this is or how to get rid of it????

UPDATE : I WENT TO THE BATHROOM AND THIS IS JUST BEING CONTINUOUS

UPDATE AGAIN: Turns out is was a cyst about the size of a golf ball. ^ that was what the doctor said she’s pretty sure it was a mix of period blood and fluids from the cyst after it burst which caused the bad cramps. Everything is fine now