

For some women this can be so overwhelming that they are unable to go about their normal lives. Mood changes, teariness and easily losing your temper can sometimes be an indicator that you are getting your period, this is referred to as premenstrual syndrome (PMS) or premenstrual tension (PMT). Some women also have a headache or feel very tired just before their period arrives or on the first day. The pain can often be stronger on the first day or two of your period and will vary in strength and severity from one women to another. You may have lower backache on its own or with the pain in your belly. This can be a crampy pain or just a mild ache. Some women will have pain in their belly (the lower abdomen). At the end of menopause, your cycle stops permanently. Your menstruation cycle (and period) stops temporarily when you are pregnant. Your cycle also changes as you get older. When you first start having periods, it can also take a while before your periods develop a regular pattern. The average cycle is 28 days but, for some women, it is as short as 21 days, for others it is as long as 35 days. When you’re pregnant, you don’t get your period. If you have sex during a cycle, and your egg meets a sperm, you can become pregnant.

The blood you lose during your period is the lining of your uterus. On day 28 (for most women), if you have not become pregnant, the lining of your uterus starts to shed.On day 14 (for most women), one of your ovaries will release an egg, which will make its way through a fallopian tube and will eventually make its way to your uterus (called ovulation).After your period is over, the lining of your uterus starts to build up again to become a thick and spongy ‘nest’ in preparation for a possible pregnancy.This is when your uterus starts shedding the lining it has built up over the last 28 days. Day one of your cycle is the first day of your period.When pregnancy doesn't occur, the egg is absorbed back into the body and the thick lining in the uterus is shed, this is your period.

An egg is produced, the lining of the uterus thickens up, hormones prepare the vagina and the cervix to accept and support sperm. Messages and hormones are being passed around the body to prepare it for a possible pregnancy. Every month there is a complex interaction between the pituitary gland in the brain, the ovaries and the uterus (or womb). Your menstrual cycle is the time between one period and the next. In most women, the ‘menstrual cycle’ happens over 28 days, starting with the first day of your period. With each cycle your body prepares the lining of your uterus to create the ideal environment for a possible pregnancy.
