gestation

noun

1.
the period during which an embryo develops (about 266 days in humans)
gestation period
Derived from:
gestate gestational
2.
the state of being pregnant; the period from conception to birth when a woman carries a developing fetus in her uterus
forebirth maternity pregnancy
Derived from:
gestate gestational
3.
the conception and development of an idea or plan
Derived from:
gestate gestational