Oooooooooooook I'm so confused
I had sex with my boyfriend a day before my period... which was July 27 & my expected period was on July 28...
We had sex so many times those two days... that my period never came.
At last I had what I think was my period on the 31st of July
But it only lasted like 3 days... a little bit heavy.
These days I've been having head aches, dizzyness & I feel like I want to throw up!!
At night I can barley sleep & I have a loss of appetite and also some cramps that feel like menstrual cramps
Its been two weeks & I took a (hpt) thatz called e.p.t. that supposly works
& it came out negative... could I be pregnant??
i need help!!!!!!!!!!!!!!!!!!!!

I suggest you wait two more weeks and retest. It could be that you are pregnant, but it could be that you are just late as well. It sounds to me as though you are coming down with a bug of some sorts. However, if the symptoms are too strong, or you feel something is wrong, see your doctor asap.

I agree with buggage, you should wait about 14 days and take another HPT just in case. However, I think it is very unlikely that you are pregnant. If you just started having sexual relations, this could throw off your period a bit and may explain why you were irregular this month. The symptoms you listed could be caused from a number of things so it is important that you see your doctor as soon as you can.