phantom symptoms?

My husband and I started trying this month - YAY! But I think I'm in my own head to much because I attribute every 'weird' feeling to thinking I'm pregnant. The last 4 nights I've had unexplained insomnia, waking up at 3am wide awake, etc,. I've also been having more random headaches than usual, and random nausea at all different times of the day, but it usually goes away pretty quickly. Are phantom symptoms a think when you're TTC? AF is due on Friday but when I tested on Monday it came back negative...so I really don't think I'm actually pregnant! This is annoying!