The mother is then pregnant.
Its called a foetus.
A baby inside the womb is called a fetus.
Gestation
Baby
In the uterus
a baby crocodile squeaks inside its egg calling for its mother.
The carrying of live young inside a female animal that gives live birth is called gestation. The length of the time spent in the gestation of one baby or one litter of young is called the gestation period. The time that a baby spends inside its mother (if its mother gives live birth) is called the gestational age.
Crocodilians (baby crocodiles) squeak from inside their eggs to call their mother.
9 months
A group of whales is called a pod and a baby whale is called a calf. The mother is just called the mother.
the placenta is taken out of the mother after delivery of her baby
Outside the mother, and inside an egg.
9 months