In the early days of our relationship, my now-husbands lack of assistance when we babysat for family is something that helped nail the door shut to my womb. I was already pretty sure of my feelings on being child-free, but this cemented it.. The more I look into it, the more I find that many situations are like this, the woman runs herself ragged doing nearly everything.
A few times we had little ones overnight and I would wind up absolutely exhausted having run around like a head whilst nothing about his day or night changed.