Possibly prego.. what do you guys think??

A bit of a tmi but my bf and i had sex out side of my ovulation period. Im not on birth control but we were protected (condom) and we checked to see if it punctured afterwards (it didnt). But now my period is 2 days late and im trying not to freak out bc its so early and its only 2 days but yknow sometimes you cant help but worry. I mean the plus side im feeling the effects as if my periods about to come on but its just not coming... what do you guys think? Should i take a test soon or is it all in my head?