As a parent myself, congratulations. You found a second way motherhood and fatherhood are different that applies in the first few years. You really showed how someone else "[Simplified] motherhood to breastfeeding"

But as those kiddos age, motherhood and fatherhood generally converge more and more. Maybe there could be communities dedicated to "beyond the bump" stuff (or whatever that subreddit was called) for those first few years that motherhood is most relevant. But for the most part? Parenthood goes beyond the biologicals.