Talk to Gynecologist on Periods Disorder

Assalamualaikum sir. My periods are not regular from last 2 to 3 months. the expected date of my periods is 21-22 but last month it was delayed about 1 week and i got them on 1-2 date. i am very nervous about this month i had done my blood test and i was diagnosed with anemia after takin medicine about 20 days and proper diet my HB is now normal But still i haven't got my periods. Plz guide me as soon as possible.i am hostalize and worried.