Hi,
Taking emergency
contraception, like Postinor, can cause changes in menstrual cycles and delay the onset of periods. In addition,
stress, changes in weight or exercise habits,
hormonal imbalances, and certain medications can also cause a delay in periods. It's also possible that the
pregnancy test was taken too early to detect pregnancy, and a retest may be necessary for a few days or a week.
If your period is delayed for more than a week, it's a good idea to take another pregnancy test to confirm whether or not you are pregnant. If the test is negative, and your period still hasn't arrived, it's important to see a healthcare provider to rule out any underlying medical conditions and to discuss potential causes of the delay.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Priyanka, General & Family Physician