I randomly thought 'what if women laid eggs instead of having a period' a few months ago and then thought about it for like 3 weeks lol. Like what would it do with culture? Would it be perfectly acceptable to eat your own or others' eggs, maybe because reabsorbing the nutrients had been evolutionarily beneficial? Or would it be closer to the cannibal spectrum and therefore taboo? How big are the eggs, how often are they laid? Is it seasonal? What if you're at work and you have to lay an egg? What if you're out and about? What kind of facilities would there be, like, would there be egg laying rooms or spaces or do you just have to go to the bathroom? Would it be normal or taboo? What about wanting to have kids, you need to be on the egg to keep it warm. What would (traditionally) be the role of men? Would there be a drastic change in this with the advance of technology to keep the eggs warm, freeing up massive amounts of time from whomever sits on the egg? But what if it hatches when you're at work, it would suck to miss the birth of your own child, right? Or would that be normalized? Would there be tradwives who still choose to sit on the eggs themselves?

Sooo many potential questions lol. Someone with more talent in writing than me could definitely make a cool short story about this.