I have not got my period yet

Patient: Dear DoctorI took the morning after pill on the 22nd of August and had spotting on the 26th, 27th, 28th I was do my period on the 9th of September and it has not come yet. Should I be worried about being pregnant or was the spotting my period? and I will have to wait until next month to get my period. this was the first time taking the morning after pill, I am 27.Regards,anxious patient

Symptoms: No period

Doctor: