Help!!!

Ladies help me,

I'm 20 weeks pregnant and so tired.

I go to bed early and wake up when my 1 y.o does but currently I'm laying on the couch while he watches cartoons and I'm nearly asleep (but I obviously can't sleep and leave him unattended) and hub doesn't get home until 7pm.. its only 1.30. 😪

PLEASE give me some energy tips? I'm so tired..

- isn't due for a nap until 5

- can't leave him with a sitter to get rest