I have headaches and I be tried a lot lately and I had my last period on 2-2-10 until the 2-4-10 and had unprotected sex on the 5 and 6 of February and I took a test on 2-22-10 and it said no but my period haven't come this month and it was suppose to come today do you think I'm pregnet

You need to wait till your about a week late, then take a test. So you know its not a late period

Now that your period is due, you can get pretty accurate results by taking a HPT if you read the directions carefully and use first morning urine.