Chances of pregnancy

So on Wednesday morning,the 8th, around 5am, I had sex with a condom and it fell off, the boy tried to find it in me but didn’t so we assumed it was somewhere on the bed. On Thursday morning I went to the toilet and the condom came out when I was peeing. I am on the pill, which

I started on the 30th of May and I have been on it constantly since and will be on it for another 19days before I take a break, but I don’t take it at exactly the same time everyday, it might be an hour or two later, so I decided to go get the morning after pill that night and took it at 8pm. Yesterday and today I have had some brown spotting, a little red today, is there still a chance I could be pregnant?