I decided when I got my FitBit (Nov) to start paying attention to my cycle, b/c my husband was finally coming home from deployment in Dec., and I’m 40, so it’s now or never to try for a 2nd child. I’ve always been pretty regular, but now I got my period after just 3 weeks, then one normal cycle, now in Jan. I have Glow and FitBit saying this is fertile time, and I got a period for 2 days. 2 weeks early, and not just spotting. What is the deal? Is this beginning of menopause? Is it probably too late?