hi, i had meprate as i missed my periods. last sunday, was my last medication , after 6 days i see just a few drops of blood nd no heavy periods and menses like before. i am not pregnent as my blood test is negative. worried - what to do? btw, last 4 months i had 4 i-pills. first time happened to me as my periods are regular. last period i got in 9th june and today is 20th july.