Hcg confusion

Two in half weeks ago I had a specialist draw my labs to make sure I was for sure pregnant because my ob ignored me. Hcg was 2,500 . For sure pregnant which matches up I was five in half weekish by calendar. Called ob they knew. Ok need me to repeat ? Anything nope . Now today they call well we are booked out and need another hcg to see if we can even do an ultrasound. Huh?? I start laughing uncomfortably this cant be real. I have been a nurse and in that specific area and the levels there were weeks ago you would have at least seen a g.s sac now you would see a heart beat and if we needed to follow my hcg it would be weeks apart it would be hard to compare numbers to see properly. I said an ultrasound would be best . No she said no and I needed to comply.. I respectfully said no thank you and she hung up. I wouldn’t be seen till april 25 in my second trimester for first apt on top …