Do I Need Antibiotics?

I got a cold that seemed to turn into bronchitis. The cough was bad and lingered but I started to feel better. then suddenly I got chest pain. On the second day of chest pain I went to urgent care. The doctor was very quick to see me and leave. He said I probably have pleurisy and prescribed me pain meds and antibiotics. My congestion and cough ate pretty much gone and I feel fine in that area. My question is do really need to take the antibiotics? He didn't do anything to test if what I had was viral or bacterial. I hate taking antibiotics if I don't have to, for my immune system and they make me feel miserable. Most common colds are viral, which don't respond to antibiotics. If I just have the pleurisy left do I really need the antibiotics?