My periods started on 29th December 2012. I took primolut and for 3 days till 31st December.. I had sex more than once and yes unprotected.. my periods resumed on 2nd January 2013... my next due date should be January 29th or 30th... its 1st feb I still haven't got my periods... could I be pregnant or is it a delay in my cycle due to primolut n... and I am 19 years.

Of course you could be pregnant. The only way to know is to wait until your period is a week or 10 days late. I understand some people test positive immediately, but I don't know if you are one of those people.

I trust you are trying to get pregnant or else you wouldn't indulge in repeatedly risky behavior.

Why did you take the medication?