Someone had you. Would you call your parents morons?
That they had me does not prove they are not. Indeed, the circumstances of my birth does not lend any support to the idea that they were particularly wise or responsible. But I don't see the relevancy.
I can see why a parent might have pride if their kids turn out exceptionally well if the parents had a big hand in making that happen (and getting knocked up does not constitute 'making it happen'). Pride should be the result of considerable acquired skill and effort that produces fine results; having pride in a windfall is misplaced.