No, you cannot claim an unborn child in Florida as a dependent. You will be able to claim the child in 2023.
If you are claiming itemized deductions the link below shows a list of medical-related expenses you can claim on Schedule A.
Tax Deduction for Pregnancy Medical Expenses
Also, review this other useful link :
Birth of a Child
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Florida doesn't have a personal income tax.
The only state in which you can claim a credit for an unborn child for 2022 is Georgia. If you are anywhere else, you will claim your child next year on the 2023 tax return that you prepare and file in 2024.