I am an umarried girl of 23 years old and between November 8 and 30 2014 I had regular sex with my boyfriend butI always used postinor (morning after pill). OnDecember 3rd, I started my period which lasted for 3 days. My period is regular (25 - 28 days). Till today, 8th of Januay 2015, I m still expecting my next period despite having no sex at all. However, I do not feel any pregnancy symptoms and I have not done any pregnancy test yet, Is it possible to be pregnant after a previous period and without sex?