@Miilanda,
We'd need more information on Seed, Frame, Date, Time, Synchroniser, etc. In order to answer why you saw Poliwag instead of Remoraid.
@Teespice,
For the given Shiny Egg frame of 14, you need to verify your seed, and then make 6 Youngster Joey calls, and then deposit your pokes.
Then cycle around until an egg is at the daycare, and decline it (or take it if you like), and then cycle around until a second egg is at the daycare. Save in front of the man this time, this should be your egg.