We live in the UK and I got little Billi at 10 weeks from a breeder or so we were told. she was infact only 6 weeks old. We thought she looked very small but she was weaned. Our vet told us at her health check that she was younger than we thought. Luckily she's a plucky little thing and she's now 6 months old and doing well, always looking for trouble and chasing our other chorkie who is 3 years old.