Female Reproductive System

Did you know that when you are born, you have around 4,000,000 immature eggs? You’ll never create new ones - by puberty you’ll have just 10% of these left, and with each menstrual cycle, or ‘period’, you’ll lose them gradually until menopause.

To fall pregnant naturally, you need to:

  • Menstruate regularly,
  • Produce a mature egg with each menstrual cycle,
  • Produce oestrogen and progesterone,
  • Ovulate (release the egg),
  • Have fallopian tubes with no blockages,
  • Have an endometrial lining that will receive the fertilised egg and allow it to implant.

Find out more about your menstrual cycle...