Your fertility cycle
There are key changes in your fertility cycle that can help you get to know what is normal for you.
Learning all about your fertility cycle can help you deal with your period and also help you predict your moods and feelings throughout the month:
Days 1 -7
Hormones are released from the brain and this kick-starts the production of the female fertility hormone - oestrogen which in turn starts your period cycle.
You might feel relaxed and happy as your hormone level - which affect your moods and feelings - will be low.
Days 7 -14
Oestrogen will cause an egg to be released from your ovaries and at the same time, your womb lining will begin to thicken in preparation for the possible arrival of a fertilised egg.
Thanks to oestrogen you might feel at your most attractive right now and your confidence levels will be high.
Days 14 -21
A ripe egg is released from your ovary in a process known as ovulation. This egg will then travel down the fallopian tubes awaiting possible fertilisation through sex.
You may feel extra sensitive to what people say and do as the ebb and flow of your hormones may give you what's known as pre-menstrual tension/syndrome (PMT) (a collection of physical and emotion symptoms such as breast tenderness, bloating, irritability and tearfulness).
If the egg is unfertilised it will naturally dissolve. This causes the thickened womb lining to be released (because there's no longer a need for it, as no egg has been fertilised) and your period will begin.
You'll probably feel tired but relaxed as your body gears up for a new cycle.