Has anyone else had this issue?

My husband (32M) works over 50 hours a week, while I (27F) am a stay-at-home wife.

I'm currently 28 weeks pregnant, and have had a lot of issues with lack of energy and back pain (getting worse). It's becoming somewhat painful doing my simple everyday tasks like washing dishes, laundry, getting dinner ready in time, cleaning etc.

As my husband is working such long hours, I don't think it would be appropriate to pass on any chores to him, and I'd feel like I was failing as a wife a little! He has taken over walking the dog at weekends but that's it.

Does anyone here have any experience/advice about this?