Appreciating her as the mother of your child is always your best move, as the new part of her is all mom. The passion and strength she brings to motherhood is awesome and worthy of your deep respect, but over time it becomes easy to get used to and take for granted. So before you make your move, look at her with your baby and take moment for a little love burst. Then let her know how lucky you and your baby are that she is his mother.
BTW, what goes around comes around. As she gets to know the new you, and sees you in action caring for her baby, she will become re-enamored with you. (Our polling indicates maximum effect when you are giving your baby a bath).
This is how your new baby can strengthen your marriage or union.
Biological research tells us why moms dump dads; at birth she gets a flood of oxytocin and then booster shots from her baby every time she holds him. You used to generate most of her oxytocin, but her now overwhelmed system gets more than she needs and doesn’t want any more. It’s tough to get used to her rejecting your caresses and cuddles; your biology helps out some by substantially reducing your testosterone for the first six weeks after the birth.
Plan on getting dumped so you will be able to respond constructively with patience.
“The hardest part mentally for me is that she's still the center of my universe and I know I'm not the center of hers anymore. This makes me sound spoiled, I'm sure, but remember we've been looking after each other for 10 fun years. I know it's supposed to be this way, and I chose her and I'm attracted to her because she's responsible, but it still feels wrong. I'm not done with the transition yet. I know she’s progressed to a place I haven’t yet, but I know I will get there.” - New Dad