A shift from your usual 28-30 day cycle to 26 days for a few months can happen with age-related hormonal changes, stress, or
thyroid shifts. It's often not a cause for worry on its own.
Next Steps
If it stays this way beyond a few more cycles, get a hormone and
thyroid panel done with a gynaecologist.
Health Tips
Please get it checked sooner if you notice heavier bleeding, spotting between periods, or cycles becoming very irregular.