Free from the author via KDP Select @
Amazon:
A Pony for Christmas: A Montana Holiday novella by Alberta-raised Nova Scotia-resident author Bev Pettersen, a heartwarming contemporary Exactly What It Says In The Title out from Westerhall, which may be a self-pub house name, but her books have previously been mentioned in prior Romance megathreads, and her blurb says that she's been a finalist for that RWA Golden Heart Award thing that they give to promising newbies.
NB: this may not actually be a romance itself, but just a heartwarming holiday tale that kind of ties into the author's dedicated horse-ranching romances. OTOH, it has this heart-shaped Xmas ornament dangling from the author's name on the cover, so I guess that kind of bodes well for the possibility of finding

inside?
Six-year-old Suzy Jenkins desperately wants a pony for Christmas. And she's certain Santa will deliver. After all, she's been on her best behavior for months--not tattling on the bullies and even sharing her only candy cane. Besides, this year she has everything ready, including a cracked water bucket and several wizened carrots.
Suzy's mother struggles just to put food on the table. Life has been challenging since her husband died, and any pet—especially a pony—is impossible. However Suzy's unflagging belief in the importance of being kind serves as a catalyst, sending ripples throughout her snowy Montana town and bringing love and happiness to more than just a big-hearted little girl.