just wanting some advice, my last period was 14th of Nov 08 i was due again on the 18th of Dec and it never came. im due every 31 days and yesterday when i wiped i got a slight reddish bleeding. then nothing today i left a pad on and it wasnt full only a few drops and was reddish-brown colour. I took a pregnancy test just before Christmas and was negative? Could i be pregnant or is it something else?