Can anyone tell me what this might be?

Rebecca

Hi Ladies! Apologies for the TMI photos! I have irregular periods but for the last couple of months I’ve started taking pre-conception vitamins and my cycles have been more regular and becoming shorter between each cycle, my last one being 33days in between, today is CD20 and I’ve just been to the bathroom and when I wiped there is a small amount of blood and also what also looks like brownish discharge (pic 2), I also noticed a drop of blood in the toilet any idea what this is or why this could have happened? I never had anything like this before! Any help or advice is greatly appreciated 🙏🏻💕