actually, most pregnancy fetishes develop partially due to exposure in childhood. which means that anyone with a younger sibling born within 5 years after them is a major high risk for developing this particular fetish. which means that a massive percentage of the population, maybe even over half of it, has at least in some small part, a pregnancy fetish.
they've done studies. google it.
which actually makes you an abnormal weirdo in addition to being a juvenile little chode. <3