Its interesting to think how hormonal BC has only been around for less than a century. What effects will the mothers (& grandmothers, since technically the moth

Its interesting to think how hormonal BC has only been around for less than a century. What effects will the mothers (& grandmothers, since technically the mother's egg is already formed in the grandmother at birth) carry onto their children over further generations? I like to think we got a nice ancestry line happening from the last 2000 years with lots of physical activity and exposure to nature.