Too narrow?

So I am wondering if my niche seems narrow enough or perhaps even too narrow? Would love if you had any guiding questions to clean it up a bit and help me make it more clear.

Right now my niche is working with women who, after having their last baby of the family, are jumping in hard and strong in creating their truly last baby…their biz. I want to help these ambitious and badass women truly have it all by helping them bring their unique contribution to the world without burning out by learning mindset, time management and the true tool of replenishment in their every daily lives.

It’s the part about starting their own biz after having their last baby that might be too specific and cut off a lot of people who might be interested in my offerings.