My period is 6 days late and i dont know if i should start worrying now or later. I took a test Friday the 18 (today is Monday the 21) and it came out negative but my period has never been late. Its literally always been aligned with the females i hangout with and we havent been hanging out any less than before and all of them started the same day like we usually do so im the only one thats late. Its been almost a month since my boyfriend an I did anything and Ive been having a lot of the symptoms such as nausea, sensitive bladder, big appetite, and mood swings so why would the test be negative? What should I do?