Be very careful trimming their nails. My dog had a bad nail trimming experience at a groomer and now he has to be sedated for trimmings, which means I have to take him to the vet and it costs a fortune. They tried just muzzling him but he’s a lot stronger than he looks and he got so upset that he peed and pooped on them. Frankly, I’m surprised they even agree to treat him after that… 
Those are some seriously cute puppies! Congratulations!