What is going on!!?

Nikki
I feel like I am losing it in this whole "let's get pregnant" game!!! Last week I missed my period, then, Bam, three days after it was supposed to start I started bleeding. The entire week before my period was supposed to start my body was out of control. My breasts were beyond sensitive- I wanted to scream when my boyfriend barely touched them and was dreading wearing a bra because even that hurt them -, I couldn't eat anything with red sauce because it made me nauseous and give me heartburn (something which I never have an issue with), I'd wake up every hour at night and was absolutely exhausted, my mood swings have been absolutely crazy this post month, and my period blasting was one day of light bleeding. I took a few tests on the 2nd and 3rd day I was supposed to ha e my period but didn't and both were negative. I took one at work and hid it in my purse. I was cleaning out purse just now and found it pushed to the bottom (kind of an ew moment). For whatever reason I took it out of the wrapper before throwing it away and noticed an extremely faint line in the left circle that wasn't there when I took the test (a week and a half ago). I mean the line is barely noticeable. But could I possibly be pregnant, but it's just super early on so barely registered on a home test? I almost feel like a person who sees something that not really there because I want it so bad! Help!!!!