does this sound normal for Beta test?

Kimberly
So I got a call from my nurse and said my beta for Monday was 171 and for Wednesday was 283. She said she wanted to comfirm with the doctor to see if he wanted me to do another beta test to make sure they really are doubling or to just schedule my 7 week ultrasound. What do you ladies think ? Normal? Should I be worried? 
Thank you in advanced ❤️