Caitlin Moran said this quote

Every woman who chooses--joyfully, thoughtfully, calmly, of her own free will and desire--not to have a child does womankind a massive favor in the long term. We need more women who are allowed to prove their worth as people, rather than being assessed merely for their potential to create new people. After all, half of those new people we go on to create are also women--presumably themselves to be judged, in their futures, for not making new people. And so it will go on, and on...While motherhood is an incredible vocation, it has no more inherent worth than a childless woman simply being who she is, to the utmost of her capabilities. To think otherwise betrays a belief that being a thinking, creative, productive, and fulfilled woman is, somehow, not enough. That no action will ever be the equal of giving birth.