Bed rest with 4 children!

My doctor said to be on bed rest. I have 4 children at home and feel like I'm all alone sometimes. I dont have friends or family that will help. My problem is my hubby works from 4 to 8 every day and the day he has off he sleeps. I totally understand that he is super tired but I need help. I dont want to cause problems between us, but also dont want to go into labor early. What should I do?