I had protected sex May 8th and 10th. We used birth control pill (I'm on the mini pill), condom, and withdrawal. I had my period from May 4th-8th. I weighed 131 then. May 11th, I moved states. I joined weight watchers (cut out carbs) & started exercising and by May 21, I weighed 126-127. May 23rd, I started noticing light spotting. It's still happening so Thursday-Sunday of light spotting with a little heavier spotting today. I took a pregnancy test yesterday & it was negative. I'm supposed to get my period May31-June1. Could I be pregnant? Or is it the weight loss/move/new job affecting my cycle? Please respond. I'm terrified.