We left DD overnight at 12 weeks (we'd been home nearly 6 weeks). But, we had concert tickets booked for nearly 12 months and we couldn't miss the concert. It was the opportunity of a lifetime and the band had since gone on a indefinate break.

We've left her a few times. Only ever with my parents, as they know her routine and what she can and can't eat. They were also the only people trusted when DD was on all her medications.