Ok, probably just pot luck, but here's what we did different.

I had Robutussin(cough medicine) 3 times a day leading up to O as it helps to give you that EWCM consistency to help the little swimmers,)it's a decongestent so it clears all the mucus out,,,sorry TMI) I didn't go to the loo after BD but did the pillow under the butt thing for 5 minutes then rolled over & went to sleep, and, we BD on a Lunar Conception date which was the day before Ovulation(I know it sounds 'out there' but hey, whatever works)

GL