My twins had there names from early on - or I should say one was a definate from about 16 weeks, the other name chosen DH decided he didn't like at 22 weeks so I had to search for a new name for that twin.

As the definate name was Liam that was given to the baby on the left (my boys were side by side pretty much my whole pregnancy), the second name for the other twin changed from Cale to Rhys. So we ended up with the L name being for the left baby and the R name for the right baby.

Now the baby on the left was always a bit lower and was always going to come out first (via c/s) and the baby on the right we knew from a scan at 20 weeks had a kidney issue, so when they first baby was born my OB told us it was the baby on the right first - so he was called Rhys - then the baby on the left - Liam.

It wasn't until a kidney scan on both boys at day 5 that we found out the baby with the kidney problem (the one on the right) was now Liam. So this confirmed to us that the baby on the left was born first then the baby on the right, but because my OB told us they were delivered the other way around my boys ended up getting the other one's name

Of course there was no way we were going to change them as they were already there own little people with there own names and to be honest if they had the 'correct' names they just wouldn't suit there personalities, Liam is my full on rough and tumble bulldozer where Rhys is my smoochy, snuggly boy and I think there names match who they are