Fecundability- the probability of pregnancy per month / per cycle
Daily intercourse - 37%/cycle
alternate days - 33%/cycle
Once a week - 15%/cycle
Fertile window- 6 days interval ending on the day of ovulation
Recommended that intercourse every 1-2 days starting prior to the fertile window can help to maximize fecundability !!!
[ ASRM,fertil steril 2013]