prenatally

As an adverb prenatally

is before birth.

As an adjective prenatal is

being or happening before birth.

As a noun birth

is (uncountable) the process of childbearing; the beginning of life.

As an adjective birth

is a familial relationship established by childbirth.

As a verb birth

is (dated|or|regional) to bear or give birth to (a child).

As an adverb prenatally is

before birth.