So confused?

Miranda
My boyfriend and I have been trying to get pregnant for a few months now.
The past couple weeks my hips have been aching really badly. I've been overly emotional ( I'm a pre k teacher and when the kids were sleeping I looked at them and just bawled.) I want to eat everything but I'm extremely nauseous. And my boobs will randomly ache. 
I've taken four pregnancy tests and they all were blank besides one that said negative. He thinks I'm pregnant all my friends think I'm pregnant. His mom even thinks I'm pregnant. Help?
Here's a picture of the last test I took.