More stimulus money in 2009 if had a baby in2008?

Yes, that is possible.

You should have made a claim for the money on line 70 of Form 1040 ("Recovery Rebate Credit") and the amount would have either been deducted from your balance due or added to your refund. No separate rebate checks are being mailed in 2009 except to Social Security, Railroad Retirement, and Veterans Disability recipients.