How likely is it that I’m pregnant?

So.. I had sex about 1-2 days before my period was suppose to start it was unprotected though he did pull out and I’m also on the pill. I haven’t had any period symptoms apart from a tiny bit of cramping before we had sex I’m pretty sure and my period is now a couple days late so I’m kinda worried as I’m never usually late. I have been very stressed and emotional this week could that impact the probability of my period being late? I’ve also had a lot of discharge today could that mean my period is close?