I have not hade my period in 6 moths and I'm 13 my friends keep telling my I can't have babies I'm scared to tell my mom cause I don't want to got to the doctor cause of there is something wrong with me

Your friends are just stupid. There are 100's of reasons you may not be having a period, when did you first start, how long have you had periods, many young girls will not be regular when they are 12 or 13 and first starting their cycles.

Next if there is something wrong, that is why you need to go to the doctor. Your mom should be the first period you talk to, not 13 year old children that do not know anything

Your friends are idiots. Once you have a period you can get pregnant. I'm hoping you aren't sexually active. Are you scared to tell your mom because you are having sex? If you aren't having sex, then your mom is the one you need to go to. She has periods too, she may be irregular and this could be why you are irregular.

With that said, it's not unusual for a girl of your age to have irregular periods for several years.