Puppy Carrier

Puppy sterilization tomorrow - Why do I need a dog carrier?
I get my dog sterilized morning. She is 5 months age, 25 lbs. After sterilization will become home in a taxi, then a staircase of my apartment. Should I take her home in a support dog, or I can take you in my arms and the cab and up the stairs. I drag a lot because she is pretty, so I'm strong enough to do, but I wonder if this could disturb the stitches.
it carries in your arms is fine, but a vector is the best.
Kwigy-Bo Eddie Dog Carrier from Posh Puppy Boutique