Brown discharge is cervical mucus that is tinged with old blood. As blood ages in the body, it turns brown instead of a bright red.
Brown Discharge: Causes and What Each Means – Intimate Rose
الإفرازات البنية في أيام التبويض - استشاري
brown spotting instead of period –
What happens when your progesterone is low? - Quora
Period Blood Color: Brown, Pink, Bright Red, and More
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Brown discharge: What does it mean, and what should I do?
How does progesterone decrease ovulation/menses and thereby pregnancy, but also increase during pregnancy to develop the endometrium? Isn't that contradictory? - Quora
Brown Discharge: Reasons for Dark Vaginal Fluid
Why Do I Have Brown Discharge?, Brown Discharge
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Can an ultrasound detect an oncoming period? - Quora