Here's what rhymes with impregnate.

Consider these alternatives

conceive / leave insemination / information seduce / use inseminated / indicated impersonate / late impregnated / pregnated fertilize / size humanize / size enslave / gave befriend / went conceptualize / size displace / place procreate / late contrive / live juxtapose / those incapacitate / state conspires / miles incinerate / late liquefy / high bequeath / these synthesize / size procure / full recombine / line fertilise / price copulate / late