I woke up in the middle of the night...

a couple of nights ago and couldn't go back to sleep.  All I could think about was how I didn't want to have a baby!  Totally was freaking out (quietly to myself in my head).  This is not the first time I have woken up like this.  I know everyone says that this is normal to feel not ready for baby or what ever, but is this just wacky hormones in the middle of the night or what?  It has happened 2 or 3 times and it is such and intense feeling.  I am fine in the morning.