My husband is getting frustrated, and I am too.

I'm going to preface this by saying my husband is wonderful and very helpful. He helps with dishes and other chores, and he is such a fun daddy to our toddler. However, lately he's been getting pretty frustrated with all he has to do. He works a hard job, is hunting for a new job, has responsibilities with our church, and he still comes home to take care of the chores and takes time to be a good dad by playing with our daughter, giving her a bath, and often getting her down for bed. I'm 6 wks pregnant, and super nauseous and exhausted. I can hardly move throughout the day. Taking care of my toddler and making sure she's happy and healthy takes everything out of me. I want to help with the chores, and I tried to do laundry yesterday, but I end up feeling miserable. Fatigue has also hit hard, and I just want to sleep all the time. Nap time can't seem to come soon enough. What can I do? I don't want my husband to wear himself down with all of his responsibilities plus mine. I want him to be able to relax. Any advice?