Please HELP!!! Haven't gotten my period!

Dayana • 17 / Taken / Follow Me 🤔😘
Hello guys, once again here I am! Anyways, I haven't gotten my period since Nov. (I took a plan b pill) anywho, I still haven't gotten my period I have taken 5 pregnancy test different days, different times and they all come out negative! but yet I haven't gotten my period. I am nervous . I can't afford to have a baby at this age . I am sexually active and I always check mine and my S.O's condoms to see if they are broken or with a whole or something ! Please please help sorry this is long