hi, usually my periods are consistant and i would have 5 days of blood , the first 2 would always be the heaviest, but last month i only got them for 2 days and it was very light, then again this month im on my 2nd day but it seems to be stopped...... i have sex with my long-term partner unprotected, but when i took a test last month it was negative but i wasnt sure if that was because it was in the same week as my period ended. can you help?