Just take a test. If you are pregnant, you can either keep the baby, have the baby adopted, or abort it (although I wouldn't take about the latter here, as most of the women here are against it).
If you are late, you can test now. Some early response tests are sensitive enough to detect 4 days before a missed period.
If you aren't, consider this a wake up call and get protection. If you aren't responsible enough to use a condom knowing perfectly well that it could get you pregnant, you shouldn't be having sex in the first place.
As for bridget and sandra's posts, I think they have a right to be that way because they've seen more than enough of these posts, and I don't blame them for being exasperated that people don't read the stickies.