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In a regular menstrual cycle of 28 days, ovulation generally occurs on the 14th day of menstrual period.
One can become pregnant, due to intercourse on or around the day of ovulation.
Thus a female of fertile age can become pregnant by unprotected sex around expected date of ovulation.
Last three days of menstrual cycle are safe regarding possibility of conception.
As you have taken oral contraceptive
) regularly for 21 days, you are protected from pregnancy
during 7 days off also.
You should again start the contraceptive pill from first day of your next menstrual period. Single pack is sufficient.
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