need help SOS

I’m 16.

I am a day late on my period. And my discharge is like a pinky brown color. It comes and goes and it’s cloudy and thick. My parents do not know I was sexually active and the last guy I had sex with did not ejaculate inside me— he just “put it in” to see what it felt like after i had given him head. I’ve been having cramps like my usual period but not bleeding. Should I be worried?

Update: I just took a pregnancy test just to make sure. I’ll be testing again tomorrow. As of right now I’m not pregnant.