Yup, totally normal.
Both of mine went a good 12+ days a few time - both exclusively BF, too.
If she's showing signs of discomfort you can do a few things to help her along.
Dissolve a little brown sugar in coooled boiled water and spoon feed it to her.
Cycle her legs a few times, gently pushing her knees up to her chin one at a time for a few repetitions.
But if she's happy and is still giving you lots of wet nappies then all is well
(Just watch for when she does go though - you'll need lots of wipes

)