So for the past few days I have had some cramping ( some of it was kind of severe), I've had headaches what seems like non stop, I'm extremely tired, getting hot flashes off an on all day, an also I've been kinda really moody ( something that didn't bother me before get to me now). My period isn't due for another 10 days an when I look on here my ovulation ended 3 days ago. Does it sound like I am pregnant or could it be something else? Has anyone been pregnant with a false pregnancy test but later on find out they are?