I hear you I had this same dilemma with my dog, there is a huge problem where I live with people dumping dogs, their are so many also that are not looked after and then puppies are constantly being dumped. I really really did not want to do anything to my dog that I was not prepared to do myself, but when she had 10 puppies with her first litter, I knew I had too, there are just too many stray dogs where I am I did not want to be bringing more dogs into the community. I did manage to rehome all of her pups but it was hard work and a lot of travel . It is a decision I did not make lightly, but we are responsible for them at the end of the day x