I've been experiencing this when i was 8th grade. But before, i was regular. I do experience menstruation once a month and 5-7 days of period. My friends sometimes tell me to take pills so that i will be regular. While my mom said, it's just normal. The thing that is bothering me is that what IF i will be barren. What IF i'm not able to get pregnant in future. By the way, I'm 15 years old, 10th grader. Please help me. :) thanks!