Quote Originally Posted by muddoc View Post
her spine pointing up would be better at trying to make that determination. It is very rare that you cannot see a gravid female from her look. Her spine will be very pointy, and she will be very swollen on the lower half of her body where she is carrying the eggs. Once you see this once, you won't forget the look.
I hope that helps some.
You cannot miss it when she has the pointed v shape from the spine being visible while gravid. Very obvious.