Developing a correct lifestyle during pregnancy is beneficial to the baby's development. We can consider adjusting the work schedule according to the school's work and rest habits, and the school work and rest are generally healthy. If the weather is fine, I think you can go out for a walk after dinner, which is good for your health, and you don't have to stay in a dark room. Go for a walk in the park or community at night and bring your husband. It's very warm. Or, as upstairs said, negotiate pruning branches.
There is also to maintain physical and mental pleasure. Maybe you can change your mind and you'll find it's good, too.