!HELP¡ AM I PREGNANT?

Hey Girls,so am 7 days late i should of started my period on the 25, i had 3 days with light brown discharge the 10 11&12 of this month,now i am with tender breast,slight nausea,sleepy & yesterday i started with the flu am regular & i am trying to concieve ,when I had 4 days missd period i took a prenancy test & it came out NEGATIVE,hadsomething like this happen to one of you guys? What should i do? I WILL REALLY APRECIATE YOUR GUYS HELP 😘