Hello dear,
Do not worry.
Unwanted 72 contain 1.5 mg levonogestrol.
It should be taken with in 72 hr of
unprotected intercourse.
It inhibit the action of FSH and LH, so there is no maturation of follicle in the ovary and decrease the chance to become pregnant.
Withdrawal bleeding occurs in most women at around the scheduled or expected time for menses (period) in that cycle.
In a few cases it may occur within 5 days.
Rarely the period may be delayed by about 7 days.
So you can wait up to 21th february.
If period is delayed by 7 days, then you should exclude the
pregnancy.
By urinary pregnancy test or by Blood
HCG level and consult with doctor.
If your pregnancy test will come positive and you do not want pregnancy, then you should use pregout
abortion kit to discard unwanted pregnacy.
Hope this may help you.
Best regards
Dr. Sagar