Could I be pregnant?

Asked by bwilliams4611 (4) September 28th, 2013 from iPhone

I am a week late for my period. I am having symptoms of being pregnant. I have been moody, headaches, using the bathroom a lot more, been having a little bit of nausea, and just have been feeling blah lately. I took a home pregnancy test a few days ago but it was negative, I will be taking another one in the morning. But, my main question is that today I started bleeding, it started off a little brown color, but now has turned red and this afternoon it seems to get a little heavier. I read that it could be implantation bleeding, I’m just confused. Could it be implantation bleeding or my period? Because, I was late a week. Any answers are greatly appreciated! Help me figure out what I should do! Thank you!