What does this mean??? Am I Pregnant?

You would think I would know this... considering this will be my 4th child and my 8th pregnancy. But I don't. I "feel" pregnant. I've taken 3 tests. First one was a week before I was due to have my period. Negative... ok... so it's probably too early. Second one was 2 days before I was due... a faint line. Hmmmm???? Today, I started bleeding... ok... so now what? I take another one... a different kind. A faint line again???? Hmm??? What do you think? After I think about it a while, it seems like I've bled really early on in all of my pregnancies.