Maybe you'll deliver early? What is going to happen when you have the baby? Will your DH be with you for a while?

Unfortunately I do know what it's like to be there (pregnant, in so much pain I couldn't walk due to my pelvis coming apart early) and I was induced at 38.5 weeks so I could have some relief. The last few weeks were hell. But I had my DH and not another child.

Do you have a friend who could come stay with you? A cousin or somebody at all? While your in-laws are helping some, they are not helping always in the right way and you could use somebody who is a peer.