Girlfrined haul out of Florida with my son with "No" permission

The only thing you can do is as soon as possible file for a paternity test and custody whether it be partial, joint or full. Don't wait for her to file for child support if she hasn't already

We need more details here. Are you the legal father? Listed on the birth certificate? Have court orders for custody and/or visitation? Court orders for support?

When did she leave? Do you know where she went?

And finally, what is your question?