I think alot depends on the child and how much adjustment you think she will need - she is used to being away from you now so that is one hurdle, but presumably not used to different carers and more children?

She might be of an age where she just loves the new place. I would just try do couple of short days and see how she is, she may be fine. With both of mine I did a very limited adjustment time (but was straight into CC) maybe three short days with DD, in fact with DS I think I only did one short day, but he had been used to picking up and dropping his sister off so although only 1 he new the place. Has your DD been to see the daycare centre yet? (e.g. a couple of hours with you there or something? Familiarization or something our center calls it before they officially start (so not paid for)) How she does there might give you an indication of how big an adjustment it will be.