Guys why is my period like this

Alyvia

So I had sex for the first time 2 days ago and i know you can’t tell this early but I got my period and it’s really watery and light and like not what it usually is and im have terrible cramps should I worry is this normal I looked it up and it said that sometimes people experience in the beginning of a pregnancy but it would be too early for me and my period wasn’t do for another 6 days