Correlation between time of menarche and time of menopause?

Do women who start their menses early in life enter menopause early, too? It seems intuitive that they would, but I don’t think I’ve ever heard this touted as fact.

And also, have any studies shown that taking the pill for a long period of time effects the onset of menopause?

Bearing in mind that we’re tlaking about “averages” here…from here.

And also…

IOW, birth control pills are not mentioned.

FWIW, I didn’t start having periods until I was 15, but menopause kicked in right on schedule at Year 50. If there were a correlation between age of menarche and age of menopause, I should have had at least a few more hot-flash-free years.