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Pregnancy is the process (state?) where a mammal(only?) carries a live offspring from conception until it develops to the point where the offspring is capable of living outside the womb.
Pregnancy starts with conception? and ends with labour?.
In humans it usually lasts 40 weeks counting from the date of last menstrual
bleeding.
The main hormones that affect a pregnant female? are progesterone? and [chorionic gonadotropine]?.
There are numerous physiological changes that develop throught pregnancy.
Terms often associated with pregnancy :