Their side just have very male-centric understanding of gametes, from a perspective of a male body. While for women/females what I am speaking is pretty clear and understandable and obvious. We are taking this for granted, forgetting that culture is very male-centric and mostly promoting male sexual reproduction, while shaming female's natural cycles and trying to hide them. So we should not forget that males (and sometimes even females) have no idea about our realities and trying to judge us based on how they would judge themselves or other males. That's why so much misunderstoonding, they are ignoring fact that our body works differently to theirs, and that we have different experience because of that.