Thanks for the query.
I understand your concern.
As you have taken an emergency pill within 72 hours, the possibility of pregnancy is less.
Usually after taking emergency pill withdrawal bleeding can occur in one week to ten days.
But as you do not get withdrawal bleeding even after two to three weeks, better to go for urine pregnancy test once to rule out the possibility of pregnancy, as emergency pill is having 5 to 10% failure rate.
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.