We usually do an Xrays on day 50 after the tie... by 5 weeks after the tie belly will start showing up.
Ultrasound is more money and does not show for sure as Xrays shows details of the bones and size of puppies heads as well mom's pelvis ...
I would wait.
Can i ask why you need to know so soon?
Good luck.
XOXO
__________________ "The reason a dog has many friends is because it wags it's tail instead of it's tong " [I]Smartpuppiepets@yahoo.com /I][ |