How do i tell mi mom nd dad im 6 wks pregnant????

ok i hav quite a stable family....i hav 3 big brothers(ages 17,20,27) nd 1 big sis(24) nd 1 lil sis(14)....im currently jux turnin 16....im 6 wks preg(i hav been countin)....mi uterus is startin 2 hurt(which means its stretchin for tha baby)....mi mom nd dad is 49 nd 56....im kind afraid to tell them becuz i mite bring shame 2 da fam,or not beh da perfect role model for mi lil sis....wat should i do?