Sharing a diaper bag?

Maybe this is a dumb question but I have one son already and I use the greenwhich skip hop diaper bag and I love it. It is pretty large. I’m currently pregnant with my daughter, so I will have a 1 year old and a newborn. Question is do I get another diaper bag like it since I love it so much or do I have them share a diaper bag? Does anyone have two that they use for each kid?