At 5 weeks old, the pup should still be with mom and litter mates. I wouldn't stress any type of training at this point. It doesn't really have the ability to hold it's bladder and it has the attention span of a cracked out knat.
Hondo Von Dopplet L Bauernhof "Hondo"- GSD
Lilie's Tug McGraw "Tug" - Golden Retriever
Maggie - Mini Dachshund (Rescue)
Lonestar Pivo - Texas Blue Lacy
Ashe - Barn Cat
Katie / APHA