Need Some Help from Caregivers who have dealt with parents and mat leave

[Monday 2 Friday Mama]

So one of my little ones is going to be a big sister ! I'm thrilled for her, and for her Mom and Dad. Mom is due at the end of April, and the "plan" (so far) is for dcg to remain in my care until her contract expires in July (2013) At that point in time, Mum isn't sure what she'd like to do - she had mentioned having her daughter drop down to part time care. While I love the family, part time care is not really something I want to do. I'm lukewarm for a few reasons. One, I don't really want to have my income cut by half for 10 months; and two, the child will be starting kindergarten in the Fall of 2014 - I won't be able to be her caregiver at that point in time anyways as I'm not on her bus route. The other thing that I'm sure will become an issue, is that while the parents "love me" and "would love it if Little One #2 could come here" I am certain that they will want to have one drop off in the morning - most parents seem to really hate having multiple caregivers for their children. I realize that there is lots of time to get this sorted out, but I was hoping for some feedback from you ladies - specifically, on how do you tell a wonderful client, nicely, that you have likely reached that fork in the road. I really want to handle this one well - they are a fantastic family, and I love their daughter, but I just can't write off 600 dollars a month for 10 months so that their child can attend part time when she's leaving my care anyways in the fall.