Normal to wait days for test results?

la

So I don't know if my OB office is old school or if most function this way. Ivebeen in numerous times for BV/yeast infections, and now possible staph infection. I'm almost 15 weeks pregnant. The BV test took a week to test. I think this staph test tastes 3 days or more. Is it normal not to have the test results that day? I would think with pregnant women and major issues, they would have top notch equipment that tests that day....

So my concern is that I'm taking bactrim medicine for the staph... And it's not the safest thing for baby. If I find out I don't have staph I'll be very upset I've been on these meds for no reason.