Advice help something?

Okay, so today makes a week late! A week before AF was due a had light pink discharge only when I wiped maybe once or twice! Last 2 days I have been eating a whole lot! Getting dizzy and just crying for no reason! And the nipple pains omg & I've had a light pain down stairs.. I haven't taken a test in last 2 days but I have before an they've all been negative! I'm so confused!!