If your child is not yet born, you cannot claim him/her as a dependent.
Unreimbursed medical expenses for your wife can be claimed along with other unreimbursed medical expenses on your Schedule A. Note that the amount claimable is subject to a minimum threshold based on your AGI.
You cannot claim child care expenses for a child that has not yet been born. Also, to claim child care expenses, you'll need the EIN or SSN of the care provider.
