HELP early labor?!

Makayla • Preschool teacher, and mother to be 😍

I am 33 weeks pregnant with my first, for 8 hours (every 30-45) Ive been having liquid diarrhea, I barely make it to the bathroom, Im feeling tightening in my upper stomache that slowly moves down and the tightening goes away, I cant tell if its gassy cramps or more... advice?