A woman gets pregnant around the days when ovulation occurs. The average time of ovulation is the 14th day of an average length (28 day) menstrual cycle. Ovulation time vary for each individual, and can occur from 12th to 19th day of the cycle . Sperm can live up to 3 to 5 days in a womans reproductive tract, so it is possible to become pregnant if unprotected sex occurs 5 days before ovulation. The life span of the typical egg is relatively short, only around 24 hours. If fertilization does not occur within that time frame, the egg will die...good luck..

Keep trying intercourse once in 24hrs during during ovulation time for 3-4 more cycles. If pregnancy doesn't happen, then you go for gynaecology check and your husband to undergo semen test for normalcy or not.