How the monthly cycle works

Days 1-5

Your period starts! The blood lost at this time is simply the lining of the womb and the unfertilised egg.

Days 6-14

The whole process starts with your womb starting to thicken. This is caused by the hormone, oestrogen, and is just your body’s way of preparing this area for the release of an egg.

Days 15-20

Every month one of your ovaries releases an egg that travels down the fallopian tube. This is where the sperm would travel to fertilise the egg. It then continues its journey to the womb which is now rich in blood to protect the egg.

Days 21-28

If the egg is not fertilised your body will know it doesn’t need the womb lining anymore, so this will break down and your period will begin.