My Mercedes has had a fever for five days now she started Thursday early morning and the fever won't go away sence I…

My Mercedes has had a fever for five days now she started Thursday early morning and the fever won't go away sence I didn't take her to the doctor Friday because I thought it was a cold and it would go away with lots of fluids and medicine but it didn't and today Monday her doctor's office was closed for presidents day. So here I am worried about her can't wait tell tomorrow morning, but if she gets worse in just taking her to the ER wanted to avoid that but I it gets bad I have to go in.. Feel so bad for my baby..😔