Nordette - Hi. I had unprotected sex 2 days before my expected period, for two consecutive days. On the 2nd day, he came inside me & I immediately took the 1st dose and 12 hours later, 2nd dose. Thing is, I took 3 per dosage only cos it totally slipped my mind that it's 4. But I took 2 more later, still within the 72 hours after he came inside me. Its been 3 days since my supposed expected period.