2 weeks late

Hi , my period is 2 weeks late . I was supposed ti get it the 26th of March but it never came. My boyfriend and I have had sex a few times in the month of march and one time was the day before I was supposed to get my period. We have always used a condom and made sure there were no holes and it didn't break and he always pulls out when he ejaculates. My friend keeps telling me im pregnant but im haveing signs of my period off and on but nothing is there. Is he right , am I pregnant ? Please help . Im 16 and only been active since February 8th