Well thankfully conception doesn't appear to be a problem for W&K. Once baby c comes, there will be less pressure to produce the spare now that the Tindall's baby is coming up next.)[/QUOTE]
Why would there be less pressure (from media) to produce a spare with the Tindall's having a child? Zara will be 15th in line to succession after William's child is born, placing her child as 16th in line. Her children have nothing to do with producing a "spare" in the event something happened to this child. Zara will only move further down the line of succession as time goes on as will her children. At this point, Harry is still the "spare" and will remain so until they have more children.