Originally Posted by
atomic sagebrush
There are two different ways to do it. "E4D" is a method, not a set in stone schedule.
Rule of thumb is this: If you want better odds of pink, stretch it to 4 full days (so if starting Monday, your next attempt would be Friday. And if you want better odds of conception (but still a good chance of pink) then do it on the 4th day instead, so Monday/Thursday. Totally up to you based on your preference what you do, and it's of course possible to start off doing Mon/Fri and then close the gap to Mon/Thur for a couple months.