6days late no AF yet please help

Maria
Currently in so much pain cramping in lower belly, then cramping in my upper thighs :( it's been likes this for a week straight not pain gets worse at night. Lots of clear discharge (tmi sorry) During the day dizzy with increase of appetite, cramping here and there.
I want to take a test but I am tired of seeing bfn. Can anyone tell me if these are symptoms of pregnancy? 
Thank you 
Also should I test now that I am six days late