@Ereshkigalangcleg
No it isn't because it's a category error. The drive for this is coming from the decentring of female experiences across the board. This is a women's health issue.
Men can't give birth. Men may have depression after their partner has given birth. It is good that studies are looking at that. But they are not postnatal, because they haven't actually given birth, and there needs to be a term for the kind of depression that occurs after a woman has given birth.
“Post natal” literally means “post birth”(of a baby).
Just like “post traumatic” means “post trauma”
You are getting confused about language. There is nothing in Post Natal Depression as a diagnosed condition that requires the sufferer to have actually given birth at the birth event in question.
From NHS
www.nhs.uk/mental-health/conditions/post-natal-depression/overview/
“Postnatal depression is a type of depression that many parents experience after having a baby. It's a common problem, affecting more than 1 in every 10 women within a year of giving birth. It can also affect fathers and partners.”
And here we have from the same NHS page a list of the MYTHS which persist on this thread:
“Postnatal depression is often misunderstood and there are many myths surrounding it.
These include:
-postnatal depression is less severe than other types of depression – in fact, it's as serious as other types of depression
-postnatal depression is entirely caused by hormonal changes – it's actually caused by many different factors
-postnatal depression will soon pass – unlike the "baby blues", postnatal depression can persist for months if left untreated and in a minority of cases it can become a long-term problem.
-postnatal depression only affects women – research has actually found that up to 1 in 10 new fathers become depressed after having a baby
-These factors are equally true of antenatal depression.