Plans on Hold?

So it sounds pretty sure that Richard's unit will be deploying sometime between July and August of 2008. That means if we were to get pregnant any time between now and then, he will not be around for the birth and potentially the whole first year of our baby's life! :( That sounds awful and it makes me want to wait until we know he'll be "home" for a longer stretch of time... so right now we're seeking God's will as to whether we should start using birth control again or just stop worrying about it and let it happen if that's His plan.