It's normal for cycles to vary by a few days from month to month. Stress, travel, sudden weight change and even sleep disruption can all nudge ovulation earlier or later.
What's worth a consultation is a pattern: cycles consistently shorter than 21 days or longer than 35, bleeding that soaks through a pad or tampon every hour for several hours, or periods that stop altogether for three months or more without pregnancy.
These patterns can point to PCOS, thyroid imbalance, or — less commonly — structural causes like fibroids or polyps. A simple hormonal panel and pelvic ultrasound usually gives us the answer within a single visit.
The goal is never to medicate a normal variation. It's to catch the cycles that are trying to tell you something before they turn into a bigger issue.