Ideas to keep busy

Husband just left for 4 months today and I am 2000 miles away from family and friends. I need ideas on what to do. Also, I am 31 weeks pregnant and have an almost 2 year old. Any recommendations would be appreciated. It’s also 30 degrees where we live and barely sunny so on the sunny days I plan on taking him outside to the park but I need ideas for things to do at home or maybe just in general to help the time pass by.