So what is normal? A cycle of exactly 28 days is uncommon – it only happens in about 1 in 10 women. Periods can come anywhere between 21 and 40 days apart once your body gets into a pattern. If you are concerned about the length of your cycle, it’s best  to speak to a doctor.

The average age for girls to get their first period is between 12 and 13, but some girls start at 8 and others not until they are 16.

Women have periods for approximately 40 years, and then, when women are in their early fifties, periods will become irregular and eventually stop. This stage of life is called menopause.

Other changes before your period

Due to the hormones circulating in your bloodstream, it is normal to experience some or all of the following symptoms before you get your period:

• sore tender breasts
• ‘bloating’ or slight swelling of the lower abdominal area
• headaches
• an increase in pimples
• a craving for sweet foods
• irritability

Be kind to yourself at this time, and you may like to ask others around you to bear with you during those few days.

Helping the pain.

Some girls can experience period cramps. These cramps feel like tummy pains or a dull ache in  the pelvic region. To relieve pain:

• place a heat pad on your abdomen or take a warm shower
• do some gentle exercise such as walking or stretching
• consider having a massage or trying a lesson in yoga or meditation
• maintain a good diet and avoid excessive fatty or greasy food
• have a hot drink (some girls find herbal tea soothing).

Medication and herbal remedies are also available from pharmacies. If your cramps affect your regular activities, you should see a doctor.

Remember, you can still do all the things you normally do when you have your period, including swimming, studying, exercising, dancing and going out shopping.