I’m a working mother. Also a nursing mom living without husband. My stress level has reached new heights due to work and client pressure.

Try taking or extending your ML. With MD approved I had heard that leaves are extended. Keep LWP as last option. Also, you can try moving into CIO or internal projects. They are less stressful. Hope you are wfh.

I think almost all of the community can’t even fathom what you’re going through.
Super proud of you. Although take help from wherever possible.
Physically and mentally, you don’t have to go through alone. And you’re just a human after all.
I really hope both of you come stronger out of this.

Try to resolve differences with husband, start involving him while raising the child, involve parents and in-laws. I know adjusting is difficult but that's how we can easily get through these challenges. Take help.