With DC1, we had a list of names we liked and then from around the beginning of the third trimester, one of them just felt right so we provisionally named him that with a few back ups just incase he didn't suit it when he was born.
This time round, it is our last baby, and all of a sudden I feel like it's so much harder to pick just one more name. I think with DC1 we often thought 'that's a nice name, we might use that next time' but now all of a sudden there won't be a next time and this is our last chance to use a name. And so now all names don't feel good enough! 
(And if you have any boys name suggestions, feel free to drop them here
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