Periods - increased regularity.

[milkyandhoney]

I have always been like clock-work with a 26 day cycle, but over the last few months I've had a few periods which have arrived rather early (as in every 21 days).

Anyone know what can cause this?

[Sugarmagnolia]

stress, weight loss or gain, or sometimes our hormones just change as we get older/after we've had kids...