Am I pregnant? Or is it something else ??

[Abbie_289]

I was supposed to get my period July 29th, from about the 29th - 4th of August I had white discharge then I ended up  having dark brown discharge to red ish blood ? To then later light brown discharge between the 4-10th. Lately I've also noticed my breast changing, my mood changes easily, I've also been able to see my own heartbeat in my stomach and feel it through my body sometimes. I've also had a hard time being able to eat/ drink dairy products which has never been a problem, I am 17 years old. It's also been hard to sleep at night & my stomach feels very different than usual & my lower abdomen from belly button down to about where the underwear line goes has been getting a bit bigger, rounder and harder.