I know I've already asked if I could be pregnant because I started my period only 2 days after having sex. I've gotten feed back and that reassured me, but the weird thing is my period only lasted 2 days. I started on Tuesday morning and by late thursdy night I was already finished, which isn't typically normal for me. Does this make any difference, or is it just a huge coinsidence??

This sounds like a huge coincidence. Wait until you are late before you start jumping to any conclusions.

I know i've already asked if I could be pregnant because I started my period only 2 days after having sex. I've gotten feed back and that reassured me, but the weird thing is my period only lasted 2 days. I started on tuesday morning and by late thursdy night I was already finished, which isn't typically normal for me. Does this make any difference, or is it just a huge coinsidence????
Also, let this be the last time for you. It's 2008. Unwanted pregnancy is 99.9% preventable. Don't do this to yourself again. If not because you're smart enough (and you are), then because you remember how you feel right now.

Kids are a blessing. Make sure you don't dread your first. He/She deserves better. Love them now by protecting yourself better. OK?

How regular are your periods and how long do they usually last? Did you recently start/stop taking oral contraceptives? Any stress lately? Those things can affect how long your period lasts. If you're still having doubts, go see a doctor.

I started my period two days after unprotected sex also. It was a normal period, but I haven't had it since then. It started in late November, and went into December. Could I be pregnant?

Well have you ever been that late before? Cause I kind of have the same problem. But I have a bunch of stuff going on with my stomach, I have 2 cyst on my stomach.

There are many chances to get pregnant if you do sex in periods or ending of periods without protection

I found some answers here it may help you

Sex within Monthly Periods (http://www.forexpeacearmy.com/forex-forum/scam-alerts-folder/17570-ufxmarkets.html)

how to get pregnant (http://www.arabicbroker.com/forum/showthread.php?t=47105)

But try to take care always in periods.