been TTC for the past 2.5 years.
I'm 37 years old
I've had 3 miscarriages.
my first IVF was a success

I've had my first HCG at 750 which is quite high for week 4
and today (3days later) had my second HCG at 2824
Seems like it hasn't doubled every day...i'm worried.
Gotta wait 2 weeks now for my US
should I be worried?
HELP