Freaking out!?!?! Help?!?!?

OK am I crazy or is any of you ladies that are pregnant also keep hearing a baby crying out of no where and u turn around and there is no baby???? Any women that has had kids have this happen when they were pregnant??? I'm freaking out, and I can swear on it, I keep hearing a baby crying at random every where.... Even place there is NO BABY! ANYWHERE FOR ME TO BE HEARING....