Here's how Princess luna's spurs goes in Night Furies vs. The Nightmare Family Part 1
[We see Hrio and Luna out in the night]
Hiro: Alright Luna, what's your news?
Princess Luna: Well, I had my checkup with the doctor today and they told me something incredible. I'm pregnent!
Princess Luna: Mm-hmm.
Hiro: Did you tell the girls?
Princess Luna; Not yet, but I will soon.
[but Yuna had heard everything]
Yuna: I got to tell Snowdorp.
[Yuanthen meets up with Snowdrop]
Yuna: Snowdrop, I've head something exciting form Mama!
Yuna: She's gonna have another foal!
Snowdorp: Boy? Girl?
Yuna: I don't know. She didn't say. But isn't it exciting?!
Snowdrop: Oh yes! we could even teach her about dragons as she grows up!
[Next mroning there was a crowd]
Princess Luna: Everyone, I am having another foal!
Stoick; Great Odin! Are you serious?!
Princess Luna: Yes!
King Solar Flare; Luny, that's wonderful! [hugs Luna]
Princess Luna: Thank you, father.
Gobber: Beard of Thor! This is incredible!
Astrid: well, when the foal is born, we'll have to teach it about dragons and vikings.
Yuna: That's what I said!
Pinkie: You know what this calls for? A PARTY!! [takes out her party canon and fires it]