Am I wrong...?

Rebecca

So the husband and I are going to Maryland in August we share a 6week old son. I have never met any of his family well I did meet his dad because he lives kinda locally but anyways he wants me to leave my baby who will be 3 month old baby with his mother over night so we can relax and have a date night but I'm not comfortable leaving my young child with a stranger. Not that I think she will hurt him but still I dont know her and neither does the baby. The hubby thinks I'm being stubborn. Am I wrong for not wanting to leave my son over night with her? ,