Pregnancy

n. state of carrying a child in the uterus; fertility, fecundity; significance, state of being rich in meaning

Pregnancy is the carrying of one or more offspring, known as a fetus or embryo, inside the body of a female mammal such as a human. In a pregnancy, there can be multiple gestations (for example, in the case of twins or triplets). Human pregnancy is the most studied of all mammalian pregnancies, and the medical field that deals with pregnancy is called obstetrics.
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The period from conception to birth. After the egg is fertilized by a sperm and then implanted in the lining of the uterus, it [more]Pregnancy - Community and Resources

Noun
1. the state of being pregnant; the period from conception to birth when a woman carries a developing fetus in her uterus
(synonym) gestation, maternity
(hypernym) physiological state, physiological condition
(hyponym) trouble
(part-meronym) cleavage, segmentation
(class) fetal movement, foetal movement

(n.)
The condition of being pregnant; the state of being with young.
  

(n.)
Figuratively: The quality of being heavy with important contents, issue, significance, etc.; unusual consequence or capacity; fertility.