TMI period question

This has never happened. I just got my period today and me and my SO we’re just making out and being goofy and all of a sudden I felt wet. So I went to the bathroom and I had bled through the super tampon, a huge clot came out in the toilet after I took it out and it’s just really coming out bad. I JUST put a new tampon in like an hour ago. It’s been normal all day like a first day, but this is way out of the norm for me. And now I’m cramping really hard. Is this normal?