ok well this is just my opinion...........

I o'ed on CD19 so the week before we BD every second day. On day 18 we didnt BD, day 19 when i got a BFP on OPK we did it morning and night same again on day 20. Just once on day 21. They say dont do it to much but the thing is if its not there to fertilize the egg then it wont happen so i think get that in there ready and waiting. sorry if TMI. im a very honest person.