At night a week before my period I have beencramping nausea and not feeling good. I haven't had sex since the fourth of February and I was on the patch. I had what I thing was my period on the 22nd of March.   It came a day early and was pretty heavy and stoped and then started two more days. I took a pregnacy test on  March 17th at three in the morning and I'm expecting my period in six days. I guess I'm freaked out because of the early cramping and nausea symptoms. Could I be pregnant?