I wonder what you all think?

Lisa

I was suppose to start my period today (8/2) but I've only had very light spotting (brown) since yesterday. I just assumed this was my period starting but I haven't had my normal cramps. My confusion comes from my BBT. It has not dropped like it normally does. Yesterday was higher than the day before and today was higher than yesterday. Any thoughts?

P.S.- I am very regular. At 35 my period has always been 25-26 days.