BTW, ‘teacher’ did you know that some ‘seed’ can be lost when a man urinates, especially first thing in the morning? God doesn’t fit in the Catholic box, sorry.
But so what?
Why would that bother me? Why would YOU think that would bother me?
Many, many sperm are lost, but so what? Many, many ova are lost --- women die with thousands of "unused " ova still present in their post-menopausal ovaries. So what? Many, many zygotes are lost in the womb before implantation. So what? Every person dies --- that's a 100% death rate -- but so what? That doesn't make direct, intentionally destructive attacks on life, and on the natural sources of life, OK.
Once again, you are proceeding on an incredibily stupid, as well as false, idea of what the Catholic Church teaches and what I believe.