Spouses with Depression

Hi everyone. I know this is an unusual topic but how many of you all have spouses/significant others who have been diagnosed with depression? My husband was diagnosed two years ago. He takes medication but still has those days. He’s actually having one of those days today, he’s in bed and called out of work. It’s hard on our family, we have a 2.5 year old girl and I’m 10 weeks pregnant with our second. I’m struggling on how to support him. I know none of it is his fault but sometimes I get frustrated because it feels like I do everything at home. Does anyone have any tips on how to help or support a depressed spouse? Thank you in advance