prenatalist
/priːˈneɪt(ə)lɪst/ /priːˈneɪtəlɪst/noun
A person who believes that the prenatal period is important in shaping the future behaviour, characteristics, etc., of a child.
adjective
Of, relating to, or designating a prenatalist or prenatalists.
Origin
Late 19th century (in an earlier sense). From prenatal + -ist.