Finally pregnant

Finally after a year of trying we got pregnant and after 3 miscarriages in the past I might just be over reacting but yesterday I was having ready bad cramp then a few hours later all my sickness went away no longer hungry and I have been hungry all the time since we got pregnant called the doctor he said ultrasound and blood test then the nurse goes you had a ultrasound a week ago and it was normal so no need to do that again just come in for blood work to check your levels and if symptoms get worse or you have a fever or bleeding call us back what would you do about this my husband says I should call back and tell them I want a ultrasound we pay for insurance so we can request whatever we want