Day of cycle
(relative to day       # of conceptions,
of ovulation            couples having
                       intercourse 1 time
                         during cycle
                      (out of 129 cycles)
 

6 days prior                   0

5 prior                        1

4 prior                        4

3 prior                        1

2 prior                       10

1 prior                       13

ovulation day                  5

1 day after                    0

more days after                0