Frequently at first: Irregular menstrual cycles are extremely common in newly menstruating teen girls ages 11-14. Around 14 to 15 years of age mother nature has the "ovulation factory" figured out and can consistently turn out a "new egg vehicle" monthly which regulates the periods if not on hormonal contraception.
Answered 5/4/2012
5.9k views
3 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question