Comment please.

I think I might be pregnant. I've been TTC for 4 months now. I've had slight light pink bleeding last night for about an hour (very little) and it went away. I started bleeding a little more for a minute last night and figured it was my period (which is due January 1st) but, I woke up with no blood on my pad & in not bleeding at all anymore. I've had belly pain, slight headaches, feeling nauseous, & fatigue. I took a test about 1 week ago (it was negative). I think it was too early. What do y'all think? Pregnant or not pregnant?