What did you call your mother growing up? Mama? Mommy? Mom? Something else?
And do you want to be called the same thing by your child?
I always called my mother "Mama," which is what she'd called her mom as well. I still call her that sometimes, in fact.
When I refer to myself, because it turns out I spent a hell of a lot of time talking about myself in the third person, I refer to myself as Mama. As in, "Mama will help you." and "Mama is making breakfast."
Jordan's first babysitter, David's mom, calls herself Mommy, and so she'd say, "Jordan's mommy." Nick also tends to say "Mommy" although he knows I dislike it, and tries to correct himself.
So Jordan was calling me Mommy, and I certainly wasn't going to correct him, although I'd use Mama when I was speaking.
Now that David is gone, Jordan is using Mama more often than Mommy, which makes me happy. For some reason, Mommy just bugs me. I don't like how it sounds.
It seems silly, I know. But it's going to be my name for years.