I would like to talk about the fact that it's already a question that professional people, especially, have to work with. Engineers, for example, and even scientists like me, will not take the full year, because we know we could lose promotions and raises, and it's a very competitive environment. If you don't return relatively quickly, you may lose your job. I should say that even in Quebec, where a woman will try to avoid being seen as pregnant until the end, and will go back relatively quickly, it's just because we don't want to lose these kinds of advantages and probably lose our position. Even I went back after two months.
There are a lot of other complicated issues when we talk about these issues. The post-pregnancy period can be quite adventurous sometimes, as per what you had experienced before.