Hello doctor. This month I hv a imp function on 21 and I ant to postpone my period date. As last month on 20 I had periods. I ll be taking primolut n from 16 two tablet a day ie mrng and night. But I am very tensed coz my period never extend then my date. So can you pls tell me with tablet did my period extend. So that I attend function on 21.

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