Menstrual cycle

Periods and fertility in the menstrual cycle

Find out what happens when in the menstrual cycle, including ovulation, periods and the fertile time.

Period problems

Treatments for period problems, including painful, missing or heavy periods, ovulation pain, and PMS.

When can I get pregnant?

How to recognise when you're likely to be fertile during your menstrual cycle, to help you plan or avoid pregnancy.

Starting periods

Tips for parents on when to talk to girls (and boys) about periods, and what to tell them.

Michelle Middleton

Endometriosis: Michelle's story

Mum-of-two Michelle Middleton talks about her symptoms and treatment of endometriosis.

Periods: do I need a doctor?

Menstrual changes that need a check-up, such as bleeding between periods, after sex or after the menopause.

Early menopause: Johanna's story

Johanna was 17 when doctors told her she had suffered premature ovarian failure.

Girls' bodies Q&A

Answers to questions about girls' bodies, including puberty and sex, vaginal discharge, and pregnancy.

Menstrual cycle: animation

This animation explains in detail how the menstrual cycle works.

Media last reviewed: 21/02/2015

Next review due: 21/02/2017

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Puberty

Articles about puberty, including the stages of puberty in boys and girls, tips to help parents prepare their children and common Q&As

Fertility

Find out about the treatments and support available if you have fertility problems

Menopause

Find out about HRT, early menopause, supporting your partner and how to deal with symptoms