Was I wrong for lying…?

Bit of a pickle here. A moral dilemma.

My husband started getting sick Friday night. Fever, coughing, congestion, fatigue, the whole nine yards. By Sunday he was still quite sick and then our 4 year old started getting sick too with a fever and major fatigue. I gave my husband a home Covid test. I took my son to the pediatrician and they swabbed him for flu and strep. It was negative so the pediatrician said it might be Covid and to just keep him home from school (they didn’t have any Covid tests). When I got home I gave my husband another Covid test which was negative, but he was still quite sick. I knew if it was negative he’d go to work where he works with a plethora of people and sometimes kids (he’s in civil engineering and sometimes enters people’s homes and lately has been working in a nursing home helping to repair walls).

Well…I lied to him. I said, oh, it’s a faint positive. He was surprised but he didn’t question me. I threw the test away and he called his boss and his boss said he could stay home for 5 days. I feel guilty for lying to my husband buuuut if I hadn’t he’d have gone to work and possibly gotten vulnerable people sick with whatever we have.

For the greater good…?