In the 24 hours before your first fuck, take a startup dose of two pills.
Always leave at least two hours between taking a startup dose and fucking.
(You don’t need to do this with follow-up doses.)
24 hours after your startup dose, start taking one pill each day – around the time you took the startup dose.
Take a follow-up dose each day until two days after your last fuck.
If another fuck comes along less than 7 days after finishing up, you can restart by taking one pill instead of two. The lead-in, follow-up and finish-up rules apply as normal.
If you took a startup dose, but the fuck didn't go ahead and you didn't take a follow-up dose, do start-up again with two pills before your next fuck.
If you miss a dose or mess up the timing, talk to your doctor about your options. This may include starting PEP – see below for more details about risk.