Down syndrome test

Hi parents! Does any of you have gone for the Down syndrome test before during your first trimester? I went for my test just a few weeks ago. I am currently at my 14 weeks now. I was shocked that the bill accumulated to almost $600+. When I went for my firstborn, it wasn't this expensive. Most probably, this happened 6 years ago. And I also just gave birth not long ago to my second, early last year, and I don't remember doing a Down syndrome test this early. It was already at my second trimester when i was told to go for the test or so? I don't remember. But what i do remember is that I don't pay that much for it? Is this the normal rate for Down syndrome, now?