Trip to the pediatrician or not ?

Elizabeth
Hi ladies , my 4 week old has delvelopwd a snotty nose and flemmy cough. No fever and the snot is pretty normal in color. Not sure if I should take him in, if they can do anything for him at this age ? I've been using saline drops, the nose asperator, and sitting in a steamy bathroom with him. Thinking about getting a humidifier. Any tips or advice ? I don't wanna be that mom who runs to the doc for everything, especially Bc the waiting room is always full of sick kiddos, but his little cough is breaking my heart. Thanks ladies !