How long does a dog’s first labor take?

A dog’s first labor usually lasts 6 to 24 hours and tends to be longer from inexperience, depending on litter size. First-time mothers have a higher risk of dystocia, so prepare for whelping beforehand and watch closely during labor. If you see abdominal straining or a puppy stuck at the vaginal opening, contact a vet or go to a hospital for assistance promptly.