Can I possibly be pregnant

So yesterday 7/3/18 I had sex with my partner and he came in me we aren’t using any form of protection now I know I have a possibility but I just wanted to see if anyone has had a similar experience and ended up pregnant. So I think cum is absolutely nasty so about 2-3 mins after he finished I went into the bathroom and douched (read about doing that after the fact) so what I read said that it can cause the sperm to swim faster to the egg and it can live between 3-7 days in me. Well I looked at one of my period tracking apps and I didn’t realize I was in my fertile time on all 3 and one of my apps says ovulation is 2 days away now. Is it possible that ovulation can come earlier? Has anyone experienced anything like this? All helps! And as I said earlier I know having unprotected sex in any form can cause pregnancy so please save yourself time from typing that.