Nice way to sidestep my assertion. Going to extraordinary lengths (and IVF would certainly qualify) to fulfill a biological urge is sinful. If all you are going to do is keep arguing from a purely biological standpoint, don't bother responding to me again. You're wasting my time.
Broken record time: The article is about the Vatican's stance on the issue. If you want to take religion out of the equation, do it on another thread and in your own spare time.