Originally Posted by
atomic sagebrush
It's not all up to chance, it's just that swaying is like an iceberg, the part we can see above the water is small, the stuff below the water is massive, so when we look at any given person, their body type/diet or whatever, that's only a small part of the stuff that sways. More goes on under the surface that we can never know about, some of which likely dates back to when we were eggs forming in our GRANDMOTHER"S body (since the egg that is us, formed in our mother's ovaries when she was in her mother's womb.)
With swaying, we control the stuff we can control, but there are things that exist outside of our control and sometimes those things have an effect on the gender of baby we conceive.