Ghosts?

Mandy • I am 34 pregnant w my second. A baby boy. My daughter, who is 4, was born a preemie and thus I'm a NICU Mom.
Last night my daughter is looking at the top of her window. It's really dark and she's just looking... She says look mommy... And points. I look and say what, she says like she's in trouble.. Oh nothing. 
A week before I was trying to get her to sleep and she says she can't sleep. I ask why. She says... They are always in my room!
I ask, who? She just makes a squeaky sound. 
She's four. I can't be scared of this there's no other proof of anything. So yeah 👻👀🙀🙈