Being a stay at home mom (SAHM) [or Domestic Engineer - hehe] isn't as rare as you may think. It seems to be coming "back into style" from my experience.
I've seen the village, and I don't want it raising my children!
I recommend reading "The Domestic Church: Room by Room." Chapter 4 discusses this exact thing. Who ever says that it is not a job has never been a SAHM! A mothers work is worth more than a paycheck. Besides I get paid... in God's Graces, smiles, drawings, and some day grandchildren....for all my efforts!
From the book:
"Motherhood is filled with sacrifice, as we know, and one particular sacrifice is in putting one's own desires on hold for the betterment of the family."
This book is incredible as I read it along with my Catholic Women's Book Club, and I suggest it to you. It reiterates what I've been taught about motherhood, gives me confidence to continue my vocation, and gives me tips to make it a little easier.
God Bless you and yours!