Hi there....it could be because i am fasting and my sleeping patterns have changed a little and eating patterns have changed but i am overdue my period by 8 days now. I was getting stomach cramps in the first 5 days of being late and really felt like i was gonna come on - i was certain of it but now the cramps have disappeared. I took a pregnancy test this morning at around 4 ish and the result was negative. my urine wasn't concentrated - it was clear. Does this affect the result? Is it true that you should wait atleast 6 hours after drinking to take a test? Can anybody help me? thanks