Namesake

Once you have a child you become Mom. Or some version of it, Mommy, Mother, Ma, or Mama. This name becomes second nature before you even realize it. Especially once your child is of the age when they can actually call you than name repeatedly themselves. Actually to be quite honest there are times when it comes at you over and over when you try to block it out.
Say in the midst of an important phone call with a little boy standing next to you saying "momomommomomomomom MOOOOOOMMMMMMMMM.....Momomomomomomomomom MOOOOOOOOMMMMMMMMM!!! Mom! Mom! Mom!!!!" Generally this goes on the whole duration of the phone call with a little bit of jumping up and down or some foot stomping.

However, it becomes so second nature that when your in a place with a lot of children and one of them cries "Mom!!" you and 18 other Moms turn your heads to see if that cry belongs to you. Or you simply reply before knowing you weren't the said Mom that was being beckoned.

Regardless, when the phone rings at 8:14am and it is a strange cell phone number showing up on the call display and you still answer anyways
"Hello"
some guy sounding about 20ish says
"Hi Mom!"
You reply "Hi!" with a bit of enthusiasm before you realize that you aren't his Mama and you try to cover with a polite "I think you have the wrong number" and he is all confused "oohh, thanks bye"

That's how my morning started anyways. I am still laughing. Poor guy. I know time flies when you have children and I know I wasn't fully awake yet. But what on earth made me think I had a 20 year old son? I'm only 24!.