1. You think having intercourse for the ONLY purpose of having children and nothing else is a lust? There is nothing more pure than to marry a wife and respect her so much as to make arrangements to only have intercourse to procreate and nothing else.
You clearly think having children is a sin.
I repeat. You think having children is a sin.
Celibacy and monasticism is found in our spiritual attitude, not in our estrangement from procreation and building divine societies.
Anyway. Don't have kids as you'll be damned into eternal damnation.