I don't think this applies in my case since I've had thoughts about wanting to die since prior to me even having me first period. A lot of the stuff that I experienced, such as fluctuations in my mood and suicidal and self-destructive thoughts and urges, seems to occur independent of my menstrual cycle. I also have PCOS and have an irregular cycle and during the times when I'm not seeing my period for up to 90 days, I don't find much of a difference in my suicidality. When my menstrual cycle does impact my emotions (which does not happen too often), it usually just causes me to feel slightly more moody than usual.