Am I pregnant ..?

Katlin

Me and my boyfriend had unprotected sex a day before my period was suppose to start . He ended up knocking me on and didn’t pull out . My period was heavy one day and 2 days after that light pink and stopped . Now this is week 3 and I’m having light pink discharge. I feel sick like I need to throw up but can’t . I’ve took to pregnancy test and they are negative .. can someone else help me ?