Essays, reference, and reflection on the Billings Ovulation Method and the female cycle. Written by the Corvia team.
Faith and the Feminine
Cycle charting is practical. You make an observation. You record it. Over time, you begin to understand the pattern your body is showing you.
July 29, 2026 · 4 min read
Every Season
Endometriosis can affect far more than a period. For some women, it means menstrual pain that interrupts ordinary life.
July 25, 2026 · 11 min read
A long cycle can make you feel like something is late. Your period is late. Ovulation is late. The app may have given your cycle a date to follow.
July 22, 2026 · 11 min read
Stopping hormonal birth control can make the first few cycles feel unfamiliar. Maybe you have not observed cervical mucus in years.
July 18, 2026 · 11 min read
Your first period is the beginning of something new. It may feel exciting, strange, inconvenient, confusing, or honestly, not like a very big deal at all.
July 15, 2026 · 10 min read
Perimenopause can make a cycle that once felt familiar suddenly seem unpredictable.
July 12, 2026 · 10 min read
If you are reading this because you have lost a baby, we are deeply sorry.
July 8, 2026 · 12 min read
Cycle Education
A period that arrives later than expected can feel like the mystery is happening at the end of the cycle.
July 5, 2026 · 8 min read
A dry day can seem like the least interesting thing on a cycle chart.
July 1, 2026 · 7 min read
Slippery is one of the most important words in the Billings Ovulation Method.
June 28, 2026 · 8 min read
The Billings Method
Both methods help women recognize fertility. The biggest difference is what they ask you to observe each day.
June 24, 2026 · 7 min read
Why you only know it after it happens, and why that matters.
June 20, 2026 · 6 min read
Before you can recognize change, you need to know what unchanged looks like.
June 17, 2026 · 8 min read
What does an ordinary Tuesday look like? An ordinary Tuesday is small.
June 13, 2026 · 7 min read
What cycle syncing gets right, where it goes too far, and why your own pattern matters more than a template.
June 9, 2026 · 9 min read
Learning to notice, read, and understand your own pattern. Most cycle apps call it tracking.
June 5, 2026 · 5 min read
Breastfeeding can make your cycle feel unusually quiet. You may go months without a period. You may notice the same dry or slightly damp sensation day after day.
June 2, 2026 · 13 min read
A textbook cycle can look wonderfully simple: period, a few dry days, changing mucus, Peak, then another period.
May 29, 2026 · 10 min read
A Corvia reflection on Theology of the Body and learning the female cycle.
May 26, 2026 · 7 min read
What the research actually tells us about correct use, typical use, and why the numbers vary.
May 22, 2026 · 9 min read
Search for information about cervical mucus and you will usually find instructions to look at discharge, stretch it between your fingers, or compare it to egg whites.
May 18, 2026 · 13 min read
What to notice as your cycle begins to return. After birth, your cycle may feel unfamiliar for a while.
May 15, 2026 · 12 min read
A straightforward guide to responsible parenthood, periodic abstinence, and openness to life.
May 11, 2026 · 9 min read
Your cycle is not a symptom to suppress. It is a sign to understand.
May 8, 2026 · 14 min read
A simple way to understand your cycle by learning the signs your body already gives you.
May 4, 2026 · 10 min read
