The moon and cycles

I'm trying to help a perimenopausal friend of mine eek out a few more cycles of fertility so she has a chance to have a kid. I was just reading some info about Lunaception and pulled up the lunar calendar and saw that my cycle is already synched up with the full moon. Coincidence or by design?

My friend is just 42 and she just got back blood results showing her body is menopausal. It's sad because I'm not sure exactly how it was that she waited so long but the window to have children may already be closed.