I want your personal opinions !

I know you girls are tired of hearing these questions im just so down lately and would like to hear some good news . Im 2 days late for my period on CD35 . Took a pregnancy test yesterday morning and negative took one this afternoon and still negative but no signs of AF . i have sore nipples for the last week , on and off nausea here and there and tiredness . Is it likely i can still test positive later in the week ? If anyone has any stories of their own to share please do ans sorry for the long post !!! Merry christmas xxx