What is this TMI

I’ve got a 4 year old son and I’ve got PCOS aswell my eating lifestyle is all over the place I’m 22 years old I’m a nightshift care worker so always on my feet that’s my source of exercise 🤣 anyway today I woke up and noticed this I’ve had it on and off all day sometimes more blood that’s like mixed in with stringy dischard could anyone be a diamond and tell me what this could be

Also I have slept with my sons dad a few times in March and start of April

Edit it’s stopped now there’s no sign of blood