In a pickle

Selda

Currently bought a new house and not even a year in both my sister moved in one has been here since April/May the other sep. I’m expecting but haven’t announced yet. I watch one of the sis daughter she’s a year old. How do u tell them to move out and how much of a notice do I give? Should I wait till I announce? And how do I tell her I probably can’t watch the 1 year old after I’m to pregnant to function. (Its hard bc we have no family to help I just idk what to do anymore any advise tips help would be absolutely appreciated.