Dog limping on back leg?

[BluePony]

Our seven week pup fell off a chair earlier she cried for about 15 minutes and now won't walk on leg, however when I touch it, she doesn't whimper or anything... is it likely she's just hurt it or should I take her to the vet??

Poor poochy, take her to the vet, it might just be bruised but at least you'd know, keep her rested until then

No insurance as we've only had her for two days. I will take her but she doesn't seem to be in any pain but to be on the safe side I'll take her tomorrow