Answer:
From the third month until birth, the developing human is called a fetus.
Step-by-step explanation:
Gestation is the period of time between conception and birth when a baby grows and develops inside the mother's womb.
The embryo is called a fetus after having reached a certain level of organ development, until the moment of birth. The development of the fetus varies every week and every month of pregnancy. During the fetal life no new organs or tissues are formed, but the maturation of existing ones occurs.