someone help me

Gabbie • Positive mind
I started my period yesterday..and it isn't a heavy as usual but the cramps are ridiculous! I don't think I'm pregnant..as i don't do it unprotected. I'm started to really stress. the night before my period started I had this like brown discharge stuff, I've had this before but never before my period, I've isally had it after! I don't know what to do..