One filly, and two mothers

Before they came to the royal palace...

It was a dark night in Equestria, but one pony was awake, even though she was supposed to be sleeping. Her name was Crystal Lightbeam. She had no idea that she was about to have birth. She said to her husband "Honey, my stomach is killing me!" "Just rest sweetie, it's just probably a little ace." "Ok, if you say so." But after two and a half hours of waiting, it still didn't feel any better at all. So she woke her husband up and said, "Honey would you please help me fly to the hospital?" "Sure sweetie, but one question." "Yes." "How? I'm a unicorn, not a pegasas like you are." "Good point."  "Hmm." "I've got it!" "What?" "Could you telaport both of us to the hospital?" "Uh, I guess, I could try at least." "Well than please do it." "Ok." They got to the hospital safely, and found out she was having birth to a little filly. "Really?"  "Yes, you are having birth to a filly, well we think a filly anyways."  Then she felt searing pain in her stomach. "I uh, think its happening!"   One hour later...

The filly was out, and they found out she was dying. "My little filly!" "What, happened to her? Why is she dying? Why?" "Calm down ma'am. I think we might be able to help her from not dying." "I hope it works! I really, REALLY hope it works!" "Don'y worry, as long as there isn't a power outage, nothing should go wrong at all." Another hour later...

they had gone down to the palace and had the chat or I guess you could say "Conversation" with the princesses. And we all know how that went. But, back at the hospital, the doctor's were so sad, or unhappy that they could not save the poor filly from dying. But little did they know that she was alive and living, but also a changeling all the most. The parent's didn't care, if there filly had been an alien, as long as she was living. They did not really care that when she grew up, she would become a changeling at all.