Am I pregnant or is my period just late ?!?

So me and my boyfriend had sex in the beginning of January! On my calender it said I was suppose to start my period on the 6th and it still haven't came . Me and my boyfriend don't use condoms as often by the way but I took a pregnancy test it came to be that I wasn't pregnant . But Last Sunday we had sex without a condom and it was a "Close Call" if you know what I mean . He say he didn't cum inside me but it was just in my high thigh and on my anus.  I Stilm haven't had my period yet and the month is almost over can somebody give me any tips on beginning stages of pregnancy or something!