negative but still i am not facing my period?

Hi,
Welcome to ehealthforum,
There was no need for taking ECP if you had intercourse during your menstrual bleeding (as chances of egg being present are nil). The periods could have stopped due to sudden high dosage of hormones contained in the ECP. The repeat bleeding that you describe could be due to withdrawal bleeding (that usually occurs within 5-7 days of taking ECP). Taking ECP after 72 hours of intercourse does not help in preventing pregnancy, and if you had taken repeat dosage of ECP, it will disrupt your hormonal pattern more and cause further delay in periods. If you had not taken the repeat dosage of ECP, you could have arrived at your expected period dates by counting the usual menstrual cycle length starting with first day of the withdrawal bleeding. Avoid further self medication and visit your doctor/gynecologist for further evaluation and assistance. If pregnancy gets ruled out and if you are not ready for pregnancy, but intend to remain sexually active, you should consider getting started on suitable regular birth control measures to be protected (after periods). Be regular with birth control use as instructed. Avoid having unprotected sexual contact if you are not ready for pregnancy. Be in regular monitoring and follow-up with your treating doctor/gynecologist and report any new/abnormal symptoms immediately. Drink plenty of water. Take adequate rest. Maintain healthy diet and lifestyle.
Take care.