Is my baby sick?!?

My son is 2 months old and he's starting to have a rough cough and sounds congested. He doesn't have a fever but he has been sleeping a little longer then usual and has been a little cranky. I'm a first time mom so a lot of people think I'm being dramatic because he doesn't have a fever but hes only 2 months old am I crazy for wanting to bring him to a doctor?