I've spent a couple of posts doting on my new baby, and since it was my first time giving birth, it makes it appear as if I'm a new mother. I'm not. I entered motherhood the moment I married my husband.
Some would argue that being a step mother is not real motherhood, but I disagree. It's true that it is different. You don't go through the pain of labor, you don't experience that magic moment where you see you baby for the first time, and you don't fall instantly in love. There isn't a bond formed based on the child's complete dependence on you as caregiver. No, you are a tentative acquaintance at first. And you're certainly not the only woman in that child's life!