And when her days
yowm (yome)
a day (as the warm hours),
to be delivered
yalad (yaw-lad')
to bear young; causatively, to beget; medically, to act as midwife; specifically, to show lineage
were fulfilled
male' (maw-lay')
a primitive root, to fill or (intransitively) be full of, in a wide application (literally and figuratively)
behold there were twins
ta'owm (taw-ome')
a twin (in plural only), literally or figuratively -- twins.
in her womb
beten (beh'-ten)
the belly, especially the womb; also the bosom or body of anything -- belly, body, + as they be born, + within, womb.