What is “safe” and what isn’t?

I’ve never been a sexually active person so please forgive me for the questions I’m about to ask. I’ve been on the pill since July 2nd and my significant other will be in town in August (9-14)

1.) am I protected with my current birth control?

2.) even if I took it an hour and a half late on one of the days through out the month

3.) technically I’d be ovulating when he’s here, if he did finish inside would there be a high chance of pregnancy regardless of being on B/C?

Again, sorry!! I don’t have any other sisters or anything