My period was two days late and when I started my period for the first day I was spotting. It was really lite. My period has never been late before. Also towards the end of my period I had severe pelvic pain. It hurt to walk or move for about a week, and then the pain was gone. I have had this pelvic pain several times before and the doctors can not seem to find out what has been causing it. I went to the doctors for this last pelvic pain. They did a pelvic exam which came out good and took some blood and urine samples. My blood was good and they said that I was not pregnant. Also I missed my birth control for two days (the patch) but I put it on as soon as I remembered. I told my husband that we could not have sex for a week until the patch kicked in. We only lasted six days. Also recently I have been filling nauseous and light headed but feel fine after I eat something. Could I be pregnant even though the doctors said that I am not?