I'm not a fan of utalitarianism myelf, so this might be wrong;
this sounds like utalitarianism - as the action you did cause other suffering.
then in your moral philosophy, are all actions that cause suffering (and joy, and all other feelings a human can experience) morally wrong?
Is then not dating, f.ex Morally wrong?
Or is it the impossibility of consent?
Yes, a child is unable to consent to being born. Just as we are all unable to consent to the world being created, or nature's whims.
I cannot consent to a state on the other side of the world making policies, but I can still react and do things about it.
There's also antinatalism from a deontological perspective.
But, from the negative utilitarianists I've known and seen, I've found an intense debate about the animal reproduction question. Some say antinatalism should include non-human animals and any other sentient being; some say it's a human-only matter. I do not have an opinion.