The average pony would be delighted to wake up and find an adorable little bundle of joy on their doorstep—even more so after having learned it's been delivered by Princess Celestia herself! Now, imagine that this new foal has been chosen by fate to save Equestria's future, and you have a scenario beyond any would-be parent's wildest dreams. How absolutely wonderful would that be?
On a related note, Twilight Sparkle is now a mother. She isn't happy about it.
Written for F*** This Prompt, because no way would I write something like this otherwise. Probably. I think.
Many thanks to Kamikakushi and Dubs Rewatcher for pre-reading.