Advice

Hey guys I am 32 weeks todayy!! Im a first time mommy so im not sure what all is supposed to be done. I feel like im getting the minimal amount of care from my ob but im not sure... I haven't had an ultra sound done sense i was 18 weeks.. (I went to a place called my little me, but they cant tell you if there is anything medically wrong) So am i supposed to have another one anytime soon? Or am i just being an anxious momma? Also what does your ob do at your appointments?!