βSt. Gianna Beretta Molla, the patron saint of mothers, physicians, and unborn children and was the first canonized woman who was a 'working mom.'
Here is a short video of her life:
https://www.youtube.com/watch?v=xivG5t69wc0&feature=youtu.be
and another with more info
https://www.youtube.com/watch?v=jbAX366dXCUβ