worried about winnie

my cute fuzzy little white dog hurt her foot. we don't know what she did but last night and this morning she will not put her one foot on the floor. i called the vet who of course is not in the office today and she will be getting checked out tomorrow. hopefully it is nothing serious. we can't see any swelling, bleeding, and she is not chewing on it but of course she won't let us check it out either. update tomorrow