Another look for the very young at what's going on (in loose terms) inside a mother's belly during the nine months of pregnancy. Every spread is devoted to one of the months. The left page is given over to a simple one-line countdown--e.g., ""Before you were born and with 9 months to go. . ."" There is also a tiny illustration tucked into a comer of this page, accompanied by a kernel of hard information, such as when the baby grows hair and nails. The opposite page has an illustration of the mother, getting bigger and clumsiÆ’r and experiencing the preborn's movements. A flap lifts to reveal the baby in its home, going through its changing paces; it's a neat gimmick, and the payoff is Comell's artwork, lighthearted and comical, pretty much as far from a biology lesson as one can get (the baby is a congenial cartoon, often clothed or accessorized, who, but for its umbilical cord, could live inside or outside the womb). There is a gap between the clever design and premise, and the information given: Davis's mild rhyming text plays pregnancy mostly for laughs and reassurance; more intriguing are the factual snippets on the lefthand pages, which will have more than one listener merrily imagining the time he or she was the size of a flea, or, even better, curled up and the size of a toaster.