I had periods twice on October, and it happened to me previously where I got twice in a month and didn't get periods the month after and ,got periods after that month .I wasn't sexual active at that time,but now me and my boyfriend had sex but he was wearing a condom and he didn't come in,nor did he ejaculate,last month my periods didn't come as I got it twice the month brie and this month I have to get it by 12th,does this mean I am pregnant?Please help someone,I am 17 and it's no acceptable to get pregnant now