oxycodone for pain

hi ladies im currently 24 weeks and im having a terrible toothache, im seriously in bed crying ... i called my OB and because i had a miscarriage last year i was prescribed oxycodone to help aleviate pain, i asked him if i could take one & surprisingly he said yes, i know ofbhe said it's ok i shouldnt worry! but im actually terrified i have an appointment for the dentist tomorrow but this hurts so bad & Tylenol isn't helping has anyone taken this while pregnant???