Originally Posted by
atomic sagebrush
Two scenarios:
If you don't O till CD 18-19, the odds of conceiving with one attempt CD 14 are slim. Not impossible though.
OR, you'll O early or some swimmers will stay alive that long. But it is POSSIBLE and what is even more possible is that the sneaky eggo will decide to show up early this month and then you'll be in with one attempt!
Personally, I'd have an attempt CD 15, then take CD 16 off, have attempt 17-18-19. If there is any way to fit in TWO attempts on CD 17 OR 18 (no need to do both, just one or the other) then I'd try for that.