(a.) Bringing forth, or about to bring forth, young; fruitful.

abecedarian aboriginal antenatal anticipating autochthonous beginning big big with child big-laden breeding budding carrying carrying a fetus creative elemental elementary embryonic expectant expecting fetal formative foundational fundamental gestating gestatory gone gravid great heavy heavy with child in embryo in its infancy in the bud inaugural inceptive inchoate inchoative incipient incunabular infant infantile initial initiative initiatory introductory inventive knocked up nascent natal original postnatal preggers pregnant prenatal primal primary prime primeval primitive primogenial procreative rudimental rudimentary superfetate superimpregnated teeming ur with child