I always wanted to be a mother.
As a girl, I was the one who wanted marriage with a half dozen kids. Meanwhile, my older sister said all she wanted was to be a veterinarian.
She spent her entire 20s with her now husband, and then their 30s raising their two children, whereas I spent most of my young adult life single and not always loving it. Although I am grateful to have a 4-year old son today, I also experience a sense of loss when I see mothers with their multiple children.