It's been 4 month that I'm not getting my periods.I was sexually active. Even after the pregnancy test, the results were negative. My friend use these hormonal pills to get her periods since it was Irregular for her. So since it had been 4 months, I didn't get my periods.That's why I took the pills which she was using and now after 5 days after taking the pills today.I'm feeling the symptoms of getting periods but since i've too visit a Pilgrimage Day after tomorrow, my mother suggested that.We use pills to postpone the periods.As she didn't know that I was sexually active.And I'd been missing my periods For Four months What do I do?