my bull mastiff

Question
how long normally is a dog pregant for..one site says 63 days and another says 8 weeks

Answer
Hi Lorraine,

On the average, a normal dog pregnancy lasts 63 days. Being an average, it can be a little less or a little longer.

If you need it, you can use a dog gestation calculator here: http://www.askabreeder.com/Dog+Gestation+Calculator

Best of luck,
Patti