Fertile days for conception/pregnancy? :

Getting pregnant is all about timing. You want to make sure the conditions are right for egg and sperm to meet.

For females having 28 day cycle, have sex at 9th, 11th and 13th day. (First day of cycle is your first day of menstrual bleeding)
Don't have sex on 5,6,7,8th day of cycle.
Don't have sex on 10th, 12th day.

For females having 30 day cycle, have sex at 11th, 13th and 15th day. (First day of cycle is your first day of menstrual bleeding)
Don't have sex on 7,8,9,10th day of cycle.
Don't have sex on 12th, 14th day.

For females having 32 day cycle, have sex at 13th, 15th and 17th day. (First day of cycle is your first day of menstrual bleeding)
Don't have sex on 9,10,11,12th day of cycle.
Don't have sex on 14th, 16th day.