If your menstrual months are always, always exactly 36 days long and never shorter, having sex where you could have been exposed to sperm on day 8 or 9 of your cycle will probably be too early to get you pregnant. But, as you can see, there are a lot of qualifiers in this statement. For one thing, if you are getting that menstrual-month length from an app, it's possible it was averaging and that your months are not that even. If some are shorter and some are longer than 36 days, you could have been on a shorter month when you and your boyfriend had the somewhat careless sex.
Your boyfriend peeing might have cleaned out some errant sperm from his urethra, but you can't be sure it cleaned out all sperm. There are millions of sperm in a single ejaculation, so he'd have to have some luck there.
How many days has it been since the sex? Taking emergency contraceptive is not recommended on a regular basis (it's for emergencies), but in your shoes I would consider it if you are still in the time window.