Positive for covid?

Hi y’all, my husband has been displaying covid symptoms for days now and I keep telling him to test but he refuses, we have a 5 week old baby who is negative and so am I, husband finally tests today and the result is a faint positive, he thinks it’s wrong and doesn’t mean it’s a real positive so I’m tryna prove him wrong. Myself and babe are about to stay at my sisters for a week until he’s negative to avoid baby getting sick!