Sunday is Mom’s special day and while you may know your mom like you know your..your own…mom, there may be a thing or two about mom’s in general that you don’t know.  In honor of those gracious gals who gave us all life, this overall look at motherhood.

24.8 is the median age of women when they give birth for the first time - meaning one-half are above this age and one-half are below. The median age has risen nearly three years since 1970.

A woman becomes pregnant most easily at the age of eighteen or nineteen, with little real change until the mid twenties. There is then a slow decline to age thirty-five, a sharper decline to age forty-five and a very rapid decline as the women nears menopause.

The odds of a woman delivering twins is 1-in-33. Her odds of having triplets or other multiple births was approximately 1-in-539.

When the female embryo is only six weeks old, it makes preparations for her motherhood by developing egg cells for future offspring. (When the baby girl is born, each of her ovaries carries about a million egg cells, all that she will ever have).

August is the most popular month in which to have a baby, with more than 360,000 births taking place that month in 2001.

Tuesday is the most popular day of the week in which to have a baby, with an average of more than 12,000 births taking place on Tuesdays during 2001.

Jason Merritt/Getty Images for Baby2Baby