If you have a LabCorp or Quest Diagnostics nearby then You can pretty much use any online lab company and have results within 48 hours.
Request A Test is a popular company. I've used them and my results to learn how to bracket in to within range in time for my HRT doctor to test me. I just order what I know my doctor will use.
It may be a little expensive if you get multiple tests but once done you will have a better grasp how your levels fluctuate and always have it on paper. I've got testing done 5, 8, 11, 14, and 17 days out. I now know that by the 11 day of stopping I'm right at the top of acceptable ranges for the HRT doctor.