There probably isn't much connection between fertility/pregnancy and menopause (well, not in my own experience.)
I thought the menopause had passed me by at 52. My periods were still every month but very light. I'd had easy births, no period issues, no other symptoms and wondered what all the fuss was about. I was a healthy weight, exercised, ate all the right food.
But the minute my periods stopped, the flushes came hourly, sleeplessness started, I began dreading work (1:1 in client facing role) in case I had a massive hot flush.
My Mum (ditto with no history of anything amiss) was menopausal around 50, as was her Mum, but my Mum carried on having flushes, sweats and insomnia into her 80s. Her then GP refused her HRT at 60, saying she was too old.
You can't predict any of it.
And as a PP said, if you 'sail' through it, it's luck, not about being more stoical, or 'getting on with it'.
My dr thinks that lack of sleep due to menopause is a huge, unrecognised health risk as it weakens the immune system, affects all our functions, and can lead to weight gain= diabetes.