Question: what to say to a struggling new mom?
Answer: This will pass. The lie that depression tells us is that the pain will last a lifetime. ... 
You're a good mother. This will be hard for her to believe. ... 
You've got this. ... 
Fear is love. ... 
You're not alone. ... 
I'll be right there. ... 
I'm right here. ... 
What can I do?