Stole this from Erica

I just stole Erica's sidebar 'cause I think it's a great idea. Abbreviations mean: LMP - Last Menstrual Period, EDO-Estimated Date of Ovulation, ENP-Estimated Next Period, DOC-Days in Cycle.

The only one I'm sure of is LMP. Estimated date of ovulation is based on a 28 day cycle. The next period is based on 31 days, and 31 days is based on how long it took me to get a period after my D&C. My cycles have always been regular, but a little longer than the 28 day average. I'm guessing 30 to 31 days. So, it's a little difficult to know when I'm "late". Good for the HPT industry.