A biological process that, without medical intervention, stands a good chance of killing the woman in question (or the baby, or both) is a far cry from "perfect", IMO.
The implicit claim in your original post was that God does exist, and that the failure of those who don't acknowledge this to recognize this fact is primarily caused by their own egos. Normal convention is that the person making an assertion is the one responsible for justifying it... if they're trying to sway people to their point of view at least.
I don't believe anyone here is trying to convince you that God does not exist. Therefore, it's not up to anyone to justify to you why they believe God does not exist.
On the other hand, your apparent purpose in starting this thread was to sway others to your point of view. Therefore, the burden of proof (or at least the burden of persuasion) is yours.
If nobody provides the logical basis for their positions, then nobody's mind will change... which means that your purpose here has been unfulfilled. Nobody else's, just yours. If you want to convince people that you're right, it's up to you.