I'm sorry that this happened to you. Pepper is around 13 lbs at 1 yr and 5 months old. Don't worry about it she is beautiful. There is just more to love and they don't have a lot of problems that the tiny ones do.
Around here we say that Pepper got her great-great-great-great grandfathers rottweiler gene.

Here is a picture of Pepper with a paperback book for a size refrence.