One thing that I have thought of that disturbs me is this. There are those who will say that using contraceptives goes against and attempts to hinder the will of God.
To which I say - "Show Me."
What is God's will for the number of children that I have. Point to me the chapter and verse that lets me know the number that God really, really, really wants me to have.
You can't because there is none. The number of children that God desires for me is part of His hidden will - and I can't know it, and for me to speculate about it only brings about false doctrine as well as either pride or despair.
We are not Calvinists harping on about the hidden will of God.
I know that God willed for me to have my wife - I know that now, didn't know that 7 years ago. But it was there. Likewise, children. Was in fact not His will that we have any in the past 3.5 years. What the next years hold - who knows. I know what my wife and I are hoping - but He will give as He wills.
As for us - we live our lives in humility, using the tools at our disposal to make decisions as seem best for ourselves and our neighbors that do not violate God's Word. And when we fail at that, when we transgress the clear Word, we repent, and trust the clear Word of forgiveness.
But wringing my hands about whether or not everything I do is God's will or goes against it... sheesh - forget that. God has revealed what He desires me to know in Christ Jesus and His Word - the rest in free, and I ain't gonna sweat it.