I TOOK A PEGNANCY TEST THE FIRST ON SAID YES AND A WEEK LATER I TOOK ANOTHER ONE IT SAID NO LAST MONTH I STARTED MY PERIOD ON THE LAST DAY OF THE MONTH AND BLEED TILL THEW 3RD OF THIS MONTH STILL NO PERIOD AND THERE ARE ONLY 4 DAYS LEFT I HAVE HAD TO DO BLOOD WORK IN THE PAST BUT NEVER HAD ONE SAY POSSITIVE AND LIE COULD I BE PREGNANT?