Period not here yet

I am 5 days late . Today if af isn't here it will officially be 6 days . There is no sign of Af . I am soo confused . My cycle is never late and this our first month of trying again since our still birth in July . My Period came back to normal in September . And now I have no signs or symptoms of Af . So so so confused. Also took a test yesterday and it was negative . So me confused ....