Don't overthink it - especially if the new nanny already is known to your child. I'd be at home the first day, perhaps a bit of the second, and that's it.

Your child is likely far more resilient than you realize (assuming nothing traumatic has happened and her schedule is consistent throughout.) Don't project your nervousness onto your child.

I've just been through a very turbulent 6 week period w/ caregivers for my 2 1/2 yr old twins and I was so pleasantly surprised by their resiliency and ability to weather the changes.

Have faith.

2 days, at most.

I agree with the PP. It would probably be helpful to nanny to have you there to essentially train her for the first few days. Then let her be alone for the rest of the week to bond.

Do the first half of the week as a threesome, and the second half of the week back off a bit.

New nanny is starting soon; previous nanny was with my two-year-old all of her life. New nanny has already come around a few days here and there so she won't be a stranger when she starts. Trying to figure out the best way to handle the transition - I have the opportunity to be around during the first week - should I be with both my DD and the nanny for the first couple of days so DD sees she's part of the family now? Do fun things together? Or should I mostly stay away to facilitate the bonding process? I think DD will have a really hard time in the beginning but maybe in the long run it'll be better? TIA.