Having a child later in life, especially if it's your first, can come with more risks. Once you have your first child at a younger age, you're less prone to complications even if the next ones come later—at least that's what I've heard.

I'm personally rather surprised to read through this thread, as I didn't know it was that common. Fortunately, I don't personally know anyone in my circle whose child is autistic—at least not yet.

Are you asking in Malaysia specifically? Beause a quick google search will give you the answer.