Help. TMI

So I didn't start my "period" till today, so basically I was 6 days late. I felt so awful all day with my tampon in so I just took it out and there was nothing but clots wrapped around it and a huge one came out with the tampon. IV never had clots before and didn't include a picture because I got scared and dropped it in the toilet but it's making me worried. Could anyone give some insight?