Well i've on the pill for 3years & I don't have periods at all.I get spotting (which is what you're having) every once in a while but I might not get it for 6months at a time.
You can probably rule out pregnancy if you've been taking your pills properly but remember the pill's only 99% effective when taken properly 100% of the time so there's always the 1% chance to remember

I think its pretty normal just to spot for your period. I usually have a fairly light period that doesn't start until the 4th day of my inactive pills. I have a friend that hardly ever gets a period at all. She just spots for a couple of hours for 2 days. So I think it's normal...

Yes, it is normal to have a light or no period at all on the pill. I get a very light period for about three days on the pill I am on now. It is hardly worth even having.

I heard that in my inactive week of not taking pills, I should get my period sometime. I also heard that I would never get my period on a saturday/sunday if I started my pills on a sunday. What does this mean? I am worried that if I don't see something before saturday, it means that I am pregnant?? This is still my first pack of pills...

Worried!

Well, some people just do not get their period on birth control pills. Also since this is your first month, you may just not be "normal" yet.
However, if you were having sex without a backup method, since you just started the pill, then you very well may be pregnant.
As far as that saturday/sunday thing that is just not true. Yes, that is why they have most people start on a sunday and it does work for a lot of people but not all. I usually don't even get my period until the thursday on my inactive pills and then it doesn't end until tuesday of my active pills. So for me, the sunday start ensures a weekend of a period. Kind of defeats the whole purpose of the sunday start!

So I'm on birthcontrol and I have unprotected sex with my boyfrend. I keep track of wen I startmy period and usuallyit comes 2 days before I did the month before. But this month I started the 4th and last month I got it the 4th but it's not normal it's like a dark brown. What does this mean????

How long have you been on birth control?

My period was always dark brown while on birth control.

If you've been tkaing your pills correctly then you've got a very small chance for pregnancy