This question is right inside my wheelhouse these days.
I was an older mom - 38 - when I had our first (Mia). Our second (Corinne) was born right after my 42nd birthday. She is now 3. Every month, when my period shows up, I wonder whether I still another one in my future. Mind you, there was a a lot of fertility work completed to enable us to have our 2nd child.
Common sense tells me we're done. Our girls play with each other, and slowly (ever so slowly) we can feel our home getting just a tad more manageable now. No longer do I have an infant tied to my breast or diaper-dependent toddlers to change (the youngest is well on her way to being potty-trained) and I can actually sit on the computer with them in the other room watching a movie (at least for a few minutes before the onslaught of "Mommeeeeeeeeeee" comes careening into the room). So, why would we want to bring a newborn into the house? That's an easy answer - because they're so cute and cuddly and sweet and precious. And that is sometimes a hard thing to not ever be faced with again. I know it is for me.
This having been said, having a newborn means that my already-stretched thin self is stretched even thinner - at least in terms of availability to each of my girls. What I can do for them now would be severely limited with a new baby. Also, my age is an issue. I know full-well that problems become much more prevalent the older the mom is when she becomes pregnant. I am 45.
Although we are currently not using any sort of birth control, I have not yet managed to become pregnant. While I know this is a distinct possibility each month, when my period comes, I am faced with an odd combination of relief as well as a little bit of melancholy.
I have read other postings on this subject. One that I read that really makes a lot of sense to me is to really embrace who my girls are growing into. While having newborns around was so rewarding, so too are these silly little gals that still own my heart and soul, even as they slowly mature before my very eyes.
E.