I'm scared that I might be pregnant?

I'm 15 turning 16 and I'm scared to death that I might be pregnant. My boyfriend and I always use protection, but I'm not on birth control. when we have and we check for breakage on the condoms. Right now I'm extremely bloated and I've haven't had my period this month, but my period has always been irregular sometimes it skips a month or two. I've checked alot of places for symptoms of pregnancy and all I have is bloating and a missed period(though mine is irregular). And I'm afraid to ask anybody for a pregnancy test and I wouldn't know who to go to to obtain one. Am I pregnant? Or am I just stressing out myself. Please help!!!