Em, so sorry to hear of your loss and you are in my prayers.

It is interesting that you bring up your thoughts on riding as I had a similar conversation with a friend two days ago. She is in her mid 40's, has 4 kids, and loves to ride as she has knee problems and cycling is the only thing that doesn't bother her knees. Two days ago she went for a ride and was hit by a cars side mirror right on her butt. She kinda flew off her bike and ended up in the grass at the side of the road. She was not majorly hurt but it made her question cycling. Does she want to risk her life this way? Her husband is a casual rider and is concerned as he does not want to raise 4 kids alone. As I told her all we can do is be careful. As a cyclist follow all traffic laws and pay attention to your surroundings. Yes you can only do so much but if it's what you love then it's worth the risk. Right now she's thinking she'll stick to riding in groups instead of alone.

But anyhow it's probably a good idea to take time off and enjoy other activities and re-evaluate how you feel in the spring. Good luck to you!