Need help!

When I went to the bathroom to check on my pad because when I was sitting there I could feel block coming but it was weird. I check and it was like a glob gooey substance that was jelly and it was bloody. I was also a little stringy and looked like it was made of blood. I’m also worried because I just started my period today and needed it 5 days ago which is not really command at all and good! Has this happen to you and is it common to find something like this? I’m worried! 😱