when would be a good time to start maternity leave?

Susie • 14 years old, 9 months ❤️
I'm in high school, and my school has been very supportive about everything. They said I can stay home for as long as I feel necessary and they will completely stop my schoolwork until I feel ready to start again, even if it's at home. I don't want to take advantage of it, but I don't know what to do. I feel sick all the time, I hate being around people anymore, and I can't even tie my shoes. I wake up exhausted every single day. I want to at least stay until I'm full term (35 weeks) what are your opinions on this?