As some women are still become pregnant earlier, ratio for older ones may be one in five or even worse. There seem to be serious mental and bodily suffering involved in process of becoming pregnant, instead of happiness. What went wrong?
Our instincts have three actions programmed for reproduction - sex, motherhood and grand-motherhood.
Sex is triggered by body clock and it was sufficient to start reproductive process in times when genetic blueprint of humans was created. It initiated actions which resulted in a new life and it was merciful to women who were not able to conceive - they were not tortured by absence of child.
Motherhood is triggered by birth and provides instinct to look after child. If there is no child it never becomes active.
Grand-motherhood is again triggered by body clock. It is activated later - it more or less replaces ability to conceive. Grand-motherhood again provides instinct to look after children in the family, it creates need to help with children of next generation of women. In the old times it was wise and efficient way how to apply experience in raising of children.
Both Motherhood and Grand-motherhood are extremely strong instincts - more powerful than self-preservation instinct..
This rather simple combination of instincts served humans well in the past, the current situation is a bit different. Sex is no longer sufficient to create new life - all sorts of contraceptive means defeat this purpose. Only rather ambiguous signals lead young woman to decision to become mother.
This situation starts to change for woman in mid thirties, when grand-motherhood instinct becomes active. By then it may be too late to have babies of their own for some women. Others need complex an costly medical treatment to conceive. At any case, big losers are children, who are reared by women with combined mentality of mother and grandmother. To have mum and dad who are in twenties is quite a different life in comparison with life with parents who are not very far from retirement.
The biggest losers are women themselves, who miss best years with their kids, many of them never enjoy their grandchildren and some of them end their lonely life bitter, without true fulfilment.
Contraception is very successful rebellion of humans against instincts. Unfortunately there is a price - our thinking and especially our happiness depends on fulfilling of our instinct-defined duties.