31 weeks, dramatic story and question!😂

I am 31 weeks and I teach Special Education. I had a student upset and not want to enter school and the student ran towards traffic, so I attempted to stop him and we both fell down! I felt fine, no pain, but school nurse asked that I call my Dr just to be safe. I did, and they said if you fall in anyway they want to see you just to check. I go in expecting to leave quickly, but I ended up having contractions every 2-4minutes for a looong time! not super painful, but uncomfortable! They finally slowed down and they let me go 6 and 1\2 hours later! They didn't give me any instructions, I think the nurse just wanted me to leave cause it was late, she was rude, but I've been resting today, ive been cramping and having a few random contractions here and there, and a ton of discharge. I just wanted to share my story and also see if anyone else has dealt with that and what you experienced.