NIPT wrong? Doctors Office from HELL

So we recently moved and I thought I would go to this obgyn clinic down the street from us because it was so close I could walk to my appointments!! First of all it was a hassle to get an appointment. SECOND, once I finally did they only did a urine test to confirm I was pregnant and had me wait for 30-40 min to do a physical exam only to be told I had to come back in 3 days because thats when the ultrasound lady would be in? So I go to my ultrasound and everything looked good baby was in good measure to due date, then I was told I had to come back again for a blood test? I was like ok? So I come back the following week and they say they are doing the gender test I was like oh ok, I didn’t request it but ok cool I didn’t to find out this early with my daughter so I agreed. I again was in the room and the “nurse” came in and took my vitals, she was kind of all over the place and when she took my blood pressure I told her it was getting uncomfortably tight, like way tighter than I have EVER felt those machines go. She said “oh no I’m killing you your dying” and laughed and busted waited again my arm was visibly a pale and going tingly and numb and finally it was over, she took the wrap off and my arm was RED and bruised with petechiae (blood underneath skin) she again tried to make light of it. Next was blood test and then she switched me to another room for a pap smear because another woman needed a blood test. Fast forward it’s almost 3 weeks later and I call to see the results and they said they are not in and it is LabCorps fault... well I went online and entered my info to them and LabCorp had my results ready since OCTOBER 29!! It says fetal sex is consistent with female but I’m scared to believe it with everything that happened. What if was mixed up?! They sure seemed confused every time I called! I’m switching doctors back and getting everything re-done. could anything affect NIPT test?? I had a baby girl last year 03/30/2019 and a miscarriage 08/2019 that was pretty bad I bled for a long time which is why this pregnancy caught me by surprise! Any info on your experience? I’m going crazy I feel like i should be able to believe the test because it’s usually accurate but something is telling me get a second opinion!!!!!!!