I think my 5 month old has pneumonia...

Sa

He is currently on amoxicillin for an ear infection, but he has developed a bad cough that makes him catch his breath and he's had an on and off fever for three days, I think the amoxicillin is keeping the pneumonia at bay.

MY REAL QUESTION... do I need to freak out and take him to the er right now or can I wait till the am and just take him to the doctor