Im a 14 years old girl freshmen and I'm worried because I'm 4 months late on my period I never had sex I never stress out about it till now and I'm scared to tell my mom because my my mom is does types that don't believe there children

Hello and thank you for choosing EmpowHer,
It is common during adolescent years to have irregular and/or missed periods. Since your recently went through puberty, your body is still trying to reach a hormonal balance. It does not indicate pregnancy whatsoever.
Danger signs to watch for include: prolonged, frequent, and/or heavy bleeding. Also watch for extreme cramping and/or PMS in general without bleeding. In any of these cases you should see a doctor.
Simply missing periods at your age is usually nothing serious.
Most doctors recommend taking birth control pills to regulate your hormones in order to have a regular period. But this is not necessary unless you have the symptoms I mentioned above.
Below I have pasted a link to an article that talks more about why periods can be late.
https://www.empowher.com/menstrual-cycle/content/think-youre-pregnant-10-other-reasons-your-period-might-be-late

Faith