text: is it normal for girls to not have their period for over 2 or 4 months?   i think it is... i have the same situation since i started getting my periods. there have been times when i didn't have my period for 6 months, but now it usually comes in 3 months. my mom said it is for no worries since i got it hereditary from her. she didn't get her period right up untill she gave birth to my brother which was at 35 years of age. so everyone is different...