My gma wants to take my daughter for a cple days to give us a break but....?

my mother in law is having a fit.... saying that a 2 and half yr old doesnt need to spend the night n e where and pretty much saying i am pawning her off... My husband and i never go out on dates our last one was in early october. I am 6 months pregnant and i am having a scheduled c section in may (due to previous c section) and i have to see how she is gonna b then.. itll be 3 nights then and my mother in law has already claimed those days.. she i feel guilty for her going to her gams overnight??