Big clot

Hi all, I am 30, never had a baby. I have pcos and I am ttc. My bmi is 43, I am currently obese, I have been trying keto for the last five weeks. My last period was 6 weeks ago.

Today I had extremely painful cramps (the worst i have had in my entire life) and I found a big clot of blood in the discharge (at least I think it is a blood clot, it is approx 2 inches long and half an inch wide ), I know it looks gross and sorry for oversharing. I wonder if someone experienced it, is it common in pcos, should I go and see a doc?