Pregnancy is the term used to describe the period in which a fetus develops inside a woman's womb or uterus.
It usually lasts about 40 weeks, or just over 9 months, as measured from the last menstrual period to delivery. The events that lead to pregnancy begin with conception, in which a sperm penetrates an egg. The fertilized egg (called a zygote) then travels through the woman's fallopian tube to the uterus, where it implants itself in the uterine wall. The zygote is made up of a cluster of cells that later form the fetus and the placenta. The placenta connects the mother to the fetus and provides nutrients and oxygen to the fetus.
Pregnancy is the start of an incredible journey.
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