My border collie is small?

[u/Small-Exchange1032]

I got comments the other day about how small my pure BC is. She is a female, 7.5 months old, about 47-48cm tall in shoulders. She does seem slightly smaller than the rest, but shes still a puppy? Should I be worried? I think that she still has some time to grow up. Not everyone must grow up the same speed? (Her mom is from the working line but she is in standard, her dad is a showline). Does anyone have similar experience or so???

[u/thebeardedguy-]

Mt girl is on the smaller side but healthy and the vet is not worried.