everyone on earth would do well to understand their own limitations......
had my hubby and i decided to not have anymore children based on our oldest's dx, we would not have our NT son.....or our potentially AS daughter.........
we all learn to deal with what we're given. if you have great hesitations over having more children, then don't have anymore. some days it is VERY difficult to deal with more than one kid on the spectrum. but for us, the days that are AWESOME outweigh the days that stink.