So four days ago, I began spotting a light brown color and it has recently turned into a dark brown flow (almost like the end of a period). Problem is, my period is not supposed to start for 3 to 4 more days. I have rules out pregnancy for the most part because it does not look like implantation spotting and I have not had sex for at least 13 days now. Some other things that should be noted: I have been very moody/upset lately which isn't normal, I have had a change in diet, I have been exercising more, I have had dry skin/acne which isn't normal, and I am currently on birth control. This has never happened before to me and I have been trying to figure it out. The symptoms seem like low progesterone, but I am no expert. What is it? And what can I do to help my body?