Should I be worried

So the doctor I’ve had my whole pregnancy which I’ve had nothing but awful things to say bout finally sent over my paper work to my new doctors took a 6 weeks for them to finally get my stuff over to them well today I call up there to finally schedule my appointment that is long over due I’m 26 weeks an my last appointment was my 20 week scan as I’m talking to the lady she starts sounding very concerned on how I’m doing an feeling an said she can’t get me in for a normal visit till they do another ultrasound she said in the paperwork they sent over it said for them to get me in for one as soon as possible my last doctor wouldn’t even talk to me about my 20 week scan they ultrasound tech said everything looked perfect when I was there so I was assuming everything was fine as she is talking she tells me that she can’t get me in for a whole nother month so I’ll be 30 weeks when I finally get seen again she said if I feel anything off an if anything weird happens to either go to the ER or call up there to get seen I feel so worried my husband keeps saying that it’s probably bc I’m going to be a new patient with them that I shouldn’t worry but I can’t help but not to worry with it going to be two months in total that he’s missing out on check ups an then her telling me I can’t be seen until I get another ultrasound just freaks me out should I be worried is there anything I can do here really this is my first pregnancy an it’s hasn’t gone at all like I had hoped for