My 2 1/2 month old ferret is walking weird?

[Destiny]

I bought her today from petco and as soon as i put her down she was walking weird. Her back legs like give out to the sides, when she hops she goes straight but when she trys to walk she doesnt have good control of her back legs. It doesnt seem to bother her at all though, she doesnt seem in any pain.Is it b/c she is so young or do you think she might have a problem....I have a 6 month old ferret and she never did that, some good feedback would be great