Perhaps you should re-read the following from CCC:
2398 Fecundity is a good, a gift and an end of marriage. By giving life, spouses participate in Gods fatherhood.
2399 The regulation of births represents one of the aspects of responsible fatherhood and motherhood. Legitimate intentions on the part of the spouses do not justify recourse to morally unacceptable means (for example, direct sterilization or contraception).
Responsible fatherhood and motherhood in part, means exercising self control when the family doesn’t have the ability to reasonably care for the child (think very poor families, like many in the Philippines).
You’re quoting JP II’s catechism, which I consider to be inferior.
I'd rather have a destitute, beggar child go to Heaven, than him never being conceived. I don't know about you, though.
Your argument above is the same one Planned Parenthood preaches to poor blacks and whites to encourage abortions.