"A Chicago teenager named Dorothy Jean Tillman has just become the youngest person in the world to obtain a PHD doctorate at the age of 17. - She took her first university course at the age of 10. - At the age of 14, Dorothy Jean Tillman had obtained an associate diploma, a bachelor''s degree and a master''s degree. Respect This is the kind of image that should be made viral on social networks"

It is common usage in English to refer to it as a baby, even in utero. Just ask your mother. But you do bring up an important question, when is it a baby? Dont say "at birth", my son's best friend was born at 28 weeks in an emergency c section because of a car accident. He is a good kid and no less of a person because he wasn't born at 40 weeks.
Sheldon Cooper companion.
#42 *drown