Extras
Twin (or Multiples) Facts!
Whether they look completely different from each other or are exact replicas of one another, every child is completely different
Fun fact: About 25% of identical twins are "Mirror Image Twins"
Even with being raised in the same environment, no two babies will be exactly the same
Do not expect twins (or multiples) to develop at the same rate, again they're all different children and will go through milestones and develop at different rates
One day you might find one child taking their first steps while your other is still crawling. Don't panic, they'll get there at their own pace.
Also, there is the possibility that with pregnancies involving more than 1 child that a mother may give birth earlier than if it was a single pregnancy
This does not mean that your child will be unhealthy or that it may affect their development. This will, however, mean that they are born premature and as a result during those early months of life, they require more care and attention than usual to catch them up to their same-age peers.
Still expect them to reach milestones in the same age ranges as non-multiples
Identical twin girls, one sitting and the other on their belly
Mary-Kate and Ashley Olsen sing "Identical Twins"