Go on Florida Access and apply for medicaid, if needed. I currently live in FL and am 25 weeks. With my first I moved here mid pregnancy, so I know what you are going through. What part of FL do you live in?
If you have any type of insurance just call your agency and tell them you need to find an OB in your new area. I'm sure they'll be happy to help. If you don't have insurance, you can go to the FL health department and depending on how big they are where you live, they will give you a preg test, blood draw, and ultrasound. They'll also get you on pregnancy Medicaid and help you get a referral to an OB. If a fl health Dept is too far from you or you live in a part of rural fl, just google pregnancy resource center in your county. There's been one in every county I've ever lived in FL.
What part of Florida are you in? I am not from there but do have family near Orlando that may be able to recommend someone for you?