We use the STRAW staging system, which is considered the gold standard for classifying reproductive ageing through menopause.
Menopause stage is mainly determined by your menstrual cycle. If you have never had a regular menstrual cycle (e.g. you have PCOS), you use or have had treatments that interfere with your period (e.g. the pill, hysterectomy) then it may be difficult to ascertain your stage based on questions alone.
You can still complete this assessment which also includes a symptom severity score.