i have been having every day very light spotting when i wipe for four days,my period was due yesterday but nothing, i only had a high temp yesterday. today i did the pregnancy test and it was negative. what does all this mean, could i be pregnant or is it a late period.(note my period is a 28 day cycle). i am 24 years old and i have one baby he is 1.7 years, i have no health problems