The Collaborative International Dictionary of English v.0.48:

Procreative \Pro"cre*a`tive\, a.
   Having the power to beget; generative. --Sir M. Hale.
   [1913 Webster]

WordNet (r) 3.0 (2006):

procreative
    adj 1: producing new life or offspring; "the reproductive
           potential of a species is its relative capacity to
           reproduce itself under optimal conditions"; "the
           reproductive or generative organs" [syn: generative,
           procreative, reproductive]

Moby Thesaurus II by Grady Ward, 1.0:

81 Moby Thesaurus words for "procreative":
   abecedarian, aboriginal, amorous, antenatal, autochthonous,
   beginning, budding, carnal, creative, elemental, elementary,
   embryonic, erogenic, erogenous, erotic, erotogenic, fecundative,
   fertilizing, fetal, fleshly, formative, foundational, fundamental,
   gamic, germinal, gestatory, heterosexual, in embryo,
   in its infancy, in the bud, inaugural, inceptive, inchoate,
   inchoative, incipient, incunabular, infant, infantile, initial,
   initiative, initiatory, introductory, inventive, libidinal,
   life-giving, multiparous, nascent, natal, nuptial, original,
   oversexed, parturient, postnatal, potent, pregnant, prenatal,
   primal, primary, prime, primeval, primitive, primogenial,
   procreant, propagative, reproductive, rudimental, rudimentary,
   seminal, sensual, sex, sexed, sexlike, sexual, sexy, spermatic,
   spermatozoic, straight, undersexed, ur, venereal, voluptuous