Why am I not getting my period
So I have not been on birth control for over a year and have been sexually active with my long time boyfriend. I usually get my period every 25-28 days and it has been 40 days since my last period. I took a pregnancy test 3 days ago and it was negative. I would have thought in that long of time it would be accurate. I feel sick sometimes and my lower back has been hurting. I had light cramping for a week and 2 days but it has gone away now. I have never missed a period and I am under no amount of stress. The only thing is that I have been on a low carb diet for 2 weeks. What could be going on?