Natural Family Planning Physician
Science-based, faith-friendly education on Natural Family Planning, cycle health, and fertility — from a board-certified, NaProTechnology-trained family medicine physician.
Grounded in evidence and the latest restorative reproductive medicine — not guesswork.
Information that respects your values and beliefs, with no pressure and no judgment.
Written by a board-certified, NaProTechnology-trained family medicine physician.
Explore your cycle
Tap a phase to see what’s happening — and what it means for fertility.
Menstrual phase
Your period begins as reproductive hormones fall to their lowest. Pregnancy is least likely now — but not impossible, especially in shorter cycles.
Can you get pregnant on your period?General education — every cycle is unique and this is not medical advice.
Start Here
Natural Family Planning (NFP), also referred to as Fertility Awareness Methods (FAM), involves tracking ovulation to determine when a woman is fertile — by observing biologic markers like cervical mucus, basal body temperature, and hormone levels. It is safe, effective, and can be used to either avoid or achieve pregnancy, in a way that is consistent with your values and beliefs.
From the Blog
Why standard day-21 progesterone labs can miss the mark, and how NaPro-timed testing gives a clearer picture of your hormones.
How bioidentical oral progesterone compares with wild yam creams - what each does, the evidence, and questions for your clinician.
An honest look at how little natural family planning is covered in medical training - and why that gap matters for patients.
A physician compares Natural Cycles, the Mira monitor, and the Creighton Model from real use - strengths, friction, and who each fits.
Options for managing painful periods (dysmenorrhea) beyond hormonal birth control, and when cycle pain is worth a closer look.
About Me
My name is Dr. Rachel Regan. I am a board-certified family medicine physician with training in full spectrum family medicine. This means that I have experience in treating all ages (newborns to geriatrics) as well as obstetrics and gynecology. However, as a Catholic physician, I have a special interest in NFP (Natural Family Planning) and using it to help diagnose and treat different women’s health issues such as irregular cycles, PMS, and infertility.
My mission is to educate and empower couples to make informed decisions about their reproductive health using methods that are both natural and consistent with their moral values.
NFP Methods
Explore each approach and find the method that fits your goals and lifestyle.
A woman makes observations of cervical mucus seen on toilet paper. She is most fertile when cervical mucus is clear, stretchy, and lubricative in sensation (like raw egg whites).
Types: Creighton, Billings, Two Day Method
A woman tracks her basal body temperature every morning (or uses a device to track average temperature while sleeping). Ovulation is indicated when basal body temperature spikes by 0.5–1.0°F and remains elevated through the luteal phase.
Types: Natural Cycles, Tempdrop
Much like an at-home urine pregnancy test, this method uses urine ovulation tests to track hormones through the cycle. A surge in LH (luteinizing hormone) indicates ovulation has occurred.
Types: Marquette Method (Clearblue Monitor), Mira Fertility, Inito Fertility
Questions Women Ask
Some of the most common questions about cycles, fertility, and NFP — answered by Dr. Regan.
Free handout
Subscribe and I’ll send you my free “Normal or Not — The Cycle Health Checklist” — a simple guide to help you tell a normal cycle from one worth a closer look.
From a board-certified NaProTechnology physician. No spam — unsubscribe anytime.
My mission is to educate and empower couples to make informed decisions about their reproductive health using methods that are both natural and consistent with their moral values.
Normal or Not
