I read in a web page about autism that NTs has a smaller brain than aspies, but the difference is minimum.
I have two sisters and one brother, they are NTs. My brother and me have bigger heads than the rest of my family.
Before I born, there are no ultra-sounds in my country, and I can't say if my head was big before my birth. But I know my birth was slower than the birth of my siblings, and the doctor used a kind of pincers (I don't remember the name
) in order to move my head and this could pass.