Chinese adoption.....?

So of cource I am chinese and adopted.which I am veryy blessed to even have a family because if I wasnt adopted I would have still been at the orphanage. But I was just wondering..... Why? Why does china have these stupid laws of only one child. My parents have td me that a chinese couple have.a baby but thete first born was a girl. but they could try again to get a boy and if they get a boy they could keep both children I think. Well mine was.oposite my biological parents tried again and got me which because of the dang law they had to put me in adoption. Sometimes I wonder if there wasnt this law I would still be with them and know wat my genes are. Where I come from and I think I might have some biological siblings. My parents left me in a cemetary because it was safe and hopefully a person would have found me whicj I was lucky but its like I dont know my true udentity. Idk where my genes come from or heck not even maybe know my real birthday!they dont know everything for a fact only a guess.... I dont think I have a true identoty. And it just somtimes hurts to know this. Sotry I didnt want this to turn into a whole sap story but I was jyst curiouse. If theres anyone out there that has a sinilar situation like mine please go ahead and share (: