3 week old.. Cold??

My 3 week old daughter has a stuffy nose. She still seems to be eating normally (just sounds really weird). But I can hear the boogers in her nose when she breaths and sometimes its really loud. Every once in awhile, her nose will run and the boogers are green and watery. Her dad currently has a cold and has for the past 3 days, however i havent gotten sick at all. So i think he somehow got her sick without getting me sick. Im a first time mom and im not really sure what to do. Do people usually call the pediatrician right away about these things or just wait for it to go away as adults do?