i am not sure what is going on here. I am 3 weeks late and I have taken 2 hpt and they have both come back negative, I always start on the 25th of every month, always. Last month my period was really light and only a 2 days which is rare for me. Now I have had lower abdomen cramps and I feel really bloated, (this is not a symptom I usually get before I start my period). I always get tender breast right before I start but nothing. I have one child and I was 9 weeks along before I realized I was pregnant with her and when I took the hpt the other line was barely visable. I am not sure what is going on here. I am never late and I mean never. How accurate are hpt? I know they say they are 99% but are they really? Any advise or comments would be appriciated. Thanks!