It s official. You re pregnant. Get used to the fact that life is never going to be the same. And break out the credit card, because that little bundle of joy is going to cost you. The list seems endless from car seats to changing pads. But don t despair. The Girlfriends are here to take some of the guesswork out of shopping for baby-to-be. We ll tell you when to skimp and when to splurge, and which hand-me-downs are safe and which are sorry. You ll get advice on

• Where to get what you need
• Crib and car seat...