Help! Need advice ASAP

Katrina • Mommy to my furbaby Zeus 🐶💙 And soon to be mommy of 1st 👶 Love my paramedic 🚑💑 Hoping to move to Oregon soon! ☔️
I'm 19 and very healthy and active. My boyfriend is 20 and for the past week we have been having unprotected sex and he hasn't pulled out. I'm not on the pill either. My last period ended the 12 of this month and I'm supposed to ovulate on the 20th which would be this week.. I'm almost positive I have 24 day cycles which would make m ovulation date sooner? Today I had very little almost water like discharge that was clear and I just feel hot and my head hurts a little bit. I feel like I could just be scared.. I just want to know what my chances are of possibly being pregnant. Thanks!!