Early period: Causes, is it normal, and when to see a doctor

When a period comes early, it is often no cause for concern. Learn about some potential causes of an early period and when to see a doctor.

How the Menstrual Cycle Works - Menstruation Guide - Dr. Jolene Brighten

Chemical Pregnancy: Symptoms, Causes, Treatment, Coping

Anson Bay Medical Centre - Late Period, Missed Period or Irregular Period? The average menstrual cycle lasts 28 days, although it's normal for it to be a bit shorter or longer than

First period: Early signs, how long it lasts, and self-care tips

Periods and Pre-Menstrual Syndrome (PMS) Symptoms – Clearblue

Mayo Clinic Q and A: Irregular periods can be common at first - Mayo Clinic News Network

Perimenopause Long Periods and Other Changes

Why Do I Have Irregular Periods After Birth?

20 Uncommon Early Signs Of Pregnancy [Infographic]

Miscarriage or Period: How to Tell the Difference

21 Early Signs & Symptoms of Pregnancy Before Missed Period

Early Period: Why Is My Period Early? – Ruby Cup

What does it mean if my period came early?

Period blood chart: What does the blood color mean?

Spotting vs. Period: Learn the Signs