:(me and my boyfriend had sex a couple of days ago (unprotected). But a few days before that I took a pregnancy test and it read not pregnant. Is it still possible that I may still be pregnant and my last period was in January?

Let me see, a few days before you had sex you took the pregnancy test? Is this a trick question??

Assume you mean a few days after you had sex, the test may not be showing positive yet. Yes you could still be.