16 weeks and don't feel pregnant

Hit 16 weeks and no longer feel pregnant. Not really showing yet but my pre-pregger pants are all too tight in abdomen. My nausea and food aversions are completely gone. My exhaustion has greatly improved tho I do still get tired easily. Thought I was feeling baby kick at 14 weeks but not feeling anything the last few days. Next checkup in 10 days and praying everything is ok. All of my tests so far have been great and leave no reason for concern. But I'm still worried. Looking forward to hearing my baby's heart beat! (Picture taken at 15 weeks.)