Thanks Chuckie, Kelda and Lee!

Chrissi! That *is* exciting news! Wow, so what will you be doing? Do they legally have to keep your job open or are they just nice that way!?
No, the law is three years.
It's one of the advantages of being a puplic servant. The public sector has generous regulations in regard to unpaid leaves. You can request a leave for childraising until the child is ten years old. Furthermore you can request leave for five more years within your life working span (as long as you work in the public sector). You could for example take a sabbath year in your twenties and another one in your forties.
So all of my 17 years at home were covered by leave for childraising. It ends when the youngest child is ten years old. From end of August (Oliver's 10th birthday) till November, I'll take two months of those five extra years.
The law is that you can request a leave for three years for childraising. Your employer has to hold your job for that time.
Of course the employer doesn't have to hold your exact place of work, they can transfer you to an equal job when you come back. If you were an office clerk, they can give you a job in a different department, but it has to be in an office again and you'll get the same pay.
In regard to what I'll be doing: I don't know yet. I studied social pedagogy, but was officially employed as a kindergarten teacher (which is a step down the ladder and pays less). However I did a social worker's job and worked with children with behavioural problems.
They have to give me an equal job, thus could employ me as kindergarten teacher and have me work as such. Or maybe I'll be lucky and there's a fitting position free for qualified social work.
Now that sounds bad, "qualified social work" - it's an occupational profile that doesn't exist in the Anglo-American region. Picture a social worker with education in diverse fields like medicine, sociology, law, pedagogics, psychology etc. But of course all of the mentioned only in regard to whatever you may encounter in the broad field of social work.
Family law is important for example, but I've never heard the first thing about business law. Or in medicine I've learned lots about the medical side of common disabilities, but of course I'm as far from being a doc as I am from being an astronaut, lol.