“But if you choose this option, you should take the progestogen-only contraceptive for at least six weeks before the hormonal blood test to ensure your results are accurate.
“If you are already on progestogen-only contraception, you can have your FSH levels checked at any time, and this will give you an accurate picture of your menopausal status.”
A FSH level that is more than 30nmol/L can “confidently be attributed to the peri-menopause”.
Pregnancy risk and menopause status
Women under the age of 50, who are not on contraception, can still fall pregnant up to years on from their last menstrual period.