Upset, Measuring small

So today I went in for my anatomy scan, according to my apps I'm 18 weeks 3 days but according to my OB I should be 1 day behind. Anyway I went in and the technician told me that I was measuring 2 weeks behind. She looked in my computer file and didn't see my first u/s when I was 6 weeks and 3 days in order to confirm my due date. She said it should've been uploaded and she doesn't understand why it wasn't. Then she asked about my genetic testing and I told her that I went over 2 weeks ago and got my results on Tuesday and she said that that info wasn't in the system either. So then she went to call my OB's office, she and a doc spoke to the tech that did my initial u/s to confirm my due date and the tech confirmed the date but the doc said that its weird that she wouldn't send the information over so that they could look at it themselves. The doc then asked if I did an ultrasound during my genetic testing. I did my testing late and when I asked about the u/s during my genetic consultation my counselor said that it didn't make sense because I was going to have the anatomy scan in 2 weeks. The doc also thought that was odd. So they booked me for another ultrasound on the 18th, they want to make sure baby girl is growing and if she is then I will just have another follow up in a month. But if she isn't then there could be something wrong and advise that I should do an amniocentesis to see if there is an genetic abnormality. I'm beyond upset and it seems odd that none of my results have been uploaded into my file. The doc said that the initial ultrasound tech has been doing it for years so it's unlikely she measured incorrectly but my issue is that if that's the case then why didn't she upload everything into my file correctly?? So now I'm sitting here for another 2 weeks hoping my mini bunny grows accordingly but deep in me I don't think something is wrong with my child...it seems like it's an internal error on their part because too many mistakes have been made. I also have an appt with my OB this coming Tuesday.