Fetus, fetus, fetus... She is a baby...It is a fetus until removed from the mother's womb. After that it is a baby. So it is impossible to "steal a fetus".
From dictionary.com:
fe·tus ( P ) n. pl. fe·tus·es
- The unborn young of a viviparous vertebrate having a basic structural resemblance to the adult animal.
- In humans, the unborn young from the end of the eighth week after conception to the moment of birth, as distinguished from the earlier embryo.