I have not had a period since January 15th, and have taken multiple OTC pregnancy tests , all of which have come back negative. I have a history of irregular periods but not this far apart normally. I have not had sex since the last week in February with my boyfriend of 4 years, although it was not protected sex. Earlier this week I noticed I m starting to get a dark brown, very light discharge . I am not sure if this is my period or just discharge. I am afraid I might be pregnant , and am also afraid of what else could be causing the problem. I have been under a lot of pressure and stress lately and do feel it in my body. Is there any way this is all just stress related? Or what other condition could be causing my problems?