Pregnancy blood tests?

I went to my first prenatal checkup which included , of course, a series of blood tests. In Florida, you have an Opt-out for testing for ually transmitted diseases, Clamydia, Ghonnerea, HIV etc... I took the tests on June 21, can I ume, if the tests had come back positive, my doctor would have contacted me to come in for consultation and preventative measures for the baby, myself and partner? I have another apppointment next week. I have no reason to feel as if they would have come back positive, just an additional worry during an exciting and nerve racking time.