I've never used anything like this before but I really need some help...I haven't had a period for almost 4 months. ive used hpt and all have come out negative I've been to the doctors and had two blood test that are negative. I got no clue what's going on. I've been tested a few years back for polycystic ovaries and it was negative. I was on the mini pill and year or so ago but have had regular periods since. this is very strange for me as I haven't been pregnant before. I really hoping some can help....