Scared - any help would be great

Kayleigh • Girls who PMS together go to prison together 👊🏼
Hi, so I've started bleeding and there's bloody clots in the toilet. I'm not due on for another 8 days and my periods are like clockwork so highly unlikely to be that. I did have unprotected sex just over two weeks ago is it too early for a miscarriage? I could be completely over reacting here but anyone who can put my mind at rest would be great