We were on that cruise as well. It was very surreal being on the ship while everything was going downhill in the outside world.
Within a week after getting back, my wife got sick and had to get tested, but it came back negative. I got sick the following week. We both had the same symptoms (fever, aches, and chest pains) and I really believe we both had the virus despite the negative test. Fortunately, we both recovered within a week on our own.. And, yes, we were both working from home and not going anywhere during that time.