TMI! Discharge picture.

Hello ladies, so I had sex on Friday January 20. It was my last fertile day however my boyfriend wore a condom and the condom did not break. We both came. My period starts on Feb 3 and I am not on birth control. On Friday night I was with a group friends and out of no where I got nauseous and ever since then everyday I've been feeling that way and it's been freaking me out because I thought I was pregnant. I'm 19 years old turning 20 soon and I'm in college. Can you guys help me out following these details and tell me if this discharge looks like pre period discharge or pregnancy type discharge? Thank you.