I'm 22, and normally, my period is all over the map. It can come 20 days after my most recent period, or 40 days... like I said, all over the map. It's never the same amount, either- it can be really heavy for longer, or really light for a shorter while.

Anyway, I last got my full period on July 28th. I have had a lot of stress lately - I just started going back to college, I am working 3 jobs, and I use public transportation/walking to get to all of them. My sleep and nutrition schedules/care have been very shaky because of that, too. Recently got into a big fight with my best friend, so I suppose that could factor in as well. My boyfriend also doesn't have a car so we don't get to see each other regularly, so that's been a point of stress as well.

I got my wisdom teeth out on the 12th of August, and the next day I *think* that I got my period - it was the typical vaginal lubricating fluid that you can find on the inside of your underwear, but it was consistently a reddish-brown tint.

That lasted for about 6 days, then stopped. I haven't gotten my period since.

Something else I've been curious about - several times, my boyfriend and I have started to have sex (unprotected, I might add :s ), but stopped quickly due to the fact that we didn't feel ready for it yet (before he came). I've taken pregnancy tests whenever this happened, and they've always read negative.

He's never masturbated and came before we started messing around, and always goes to the bathroom several times after he's come, regardless, so there is very little to now chance that there could be any sperm left over in the urethra to be carried by the Cowper's fluid (pre-ejac)...

Two weeks ago, this same situation happened, and I had a lot of emotional stress from it, because I was worrying a lot about how it might change our relationship if we kept doing this, and because I was fluctuating a lot emotionally about how I felt about the situation (I was raised to wait 'til marriage for sex, so it's been bothering me).

I still haven't gotten my period. Is there a chance that I could be pregnant? Should I be worried about that too? Or was the very light period and now the lack there-of simply related to my stress?