How good are doctors with patient confidentiality?

So i went into urgent care a couple of days ago because i was getting little "crampy" feelings in my stomach and near my pelvis and sometimes felt pressure iny abdominal area. They had me give them a urine sample and it took them almost half an hour to come back and talk with me.. i wasn't alone... my mom was with me and she stepped out just before the doctor came in and told me my urine was normal... she said something to me after which really has me SUSPICIOUS.. she asked "ok... so.. is there ANYTHING you need to tell me?" I said no and she asked again to be sure and i said no then she prescribed me pills... do you think i could be pregnant and she is covering up for me because my mom was with me? Because when she walked in she asked me if i was alone and i told her no that my mom was with me... i have had irregular periods the last two months they were at most 2 and a half days and very light...
How good are doctors with patient confidentiality?
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