SCARED I COULD BE PREGNANT 🤰

My boyfriend and I had unprotected sex about a week and a half ago (well within my fertile window) and we were kind of high/drunk and neither of us are sure if he pulled out or not (BTW I know this is unresponsible). My period is due in four days. I have had very tender breasts and they seem to be a little bit bigger this could just be me se omg things).  I had kind of a pinkish discharge the other day and I've been starting to get nauseous and got sick today and gag at smells that didn't used used to (I'm a CNA so not very much makes me queezy). Do these seem like early pregnancy signs?