I understand you are hurt bro and certainly don't want to get into a theological debate. I call my God just that, God. Belief in Him requires faith, which many have a hard time understanding.
Turn on the television and watch the news… wars, famines, natural disasters, strife, crime and economic uncertainty. And not just lives disrupted, but lives ended prematurely, as in the case of your son. All of the suffering in the world can be traced back to the original sin of Adam...in short, this is something caused by man, not God. And it will only be man that can use the power of God's love to end it.
I am extremely appreciative of the fact that you loved your unborn son that much. He deserved every bit of that love, even in death. Think about the millions upon millions of aborted babies that didn't get that same love.
It is in weakness that we are more apt to trust in Christ because we realize that what we accomplish is not of our own doing, but the grace of Christ is working in us. Furthermore, it is in our weakness and suffering that we grow in humility and cannot pride ourselves in our accomplishments. We suffer “to make us rely, not on ourselves but on God who raises the dead.” (2 Corinthians 1:9)