Is My Menstrual Cycle Normal?

The answer might surprise you...

Welcome to the Gut Honest Truth blog where a Certified Functional Medicine Practitioner gives you digestible information to tackle your chronic health concerns.

That's me, Katie Morra; and in this blog I'm going to walk you through everything you need to know about your menstrual cycle — what's actually happening hormonally, what a healthy period looks like, and how to know if you're ovulating.

And as always, working one-on-one for your specific needs is always our top recommendation, check out our appointment options to get started with one of our licensed health care professionals today.

At GHT, we believe the menstrual cycle is one of the most undertaught topics in women's health. Most people know about the period — the bleed — but that's only a small piece of the picture. The entire menstrual cycle is a symphony of fluctuating hormones that support fertility, create an environment for potential pregnancy, and influence multiple aspects of overall health. Understanding your cycle is one of the most empowering things you can do for your health.

Hormones Involved in the Menstrual Cycle

Estrogen — responsible for the physical changes of development (breast growth, pubic hair, initiation of the menstrual cycle). Made primarily in the ovaries, with the adrenal glands taking over production during menopause. Estrogen receptors exist throughout the brain, bone, skin, and heart — making estrogen's influence system-wide.

Progesterone — the calming, feel-good hormone and the essential counterbalance to estrogen. It reduces anxiety, builds and maintains bone, supports blood vessel relaxation, regulates nerve function, and prepares the uterine lining for potential pregnancy. No ovulation = no progesterone. This is why ovulation matters for far more than fertility.

Supporting hormones:

• FSH (Follicle Stimulating Hormone) — stimulates follicle development (the immature egg's home)

• LH (Luteinizing Hormone) — triggers ovulation

• GnRH (Gonadotropin Releasing Hormone) — signals the pituitary to release FSH and LH

• Testosterone — yes, women need it too. It supports muscle and bone mass, drives libido, and supports healthy hormone balance overall

Main organs involved: hypothalamus, anterior pituitary, ovaries

The 3 Phases of the Menstrual Cycle

Your menstrual cycle is the full span from the first day of bleeding to the next first day of bleeding. The period itself is just the bleed — typically days 1-7. The cycle as a whole is much more.

Follicular Phase (Days 1-14)

The main purpose of this phase is to stimulate the ovaries to develop a follicle for ovulation.

• Low estrogen and progesterone signal the hypothalamus to release GnRH

• GnRH tells the pituitary to secrete FSH and LH

• FSH recruits 3-30 ovarian follicles, each containing a single egg

• One egg is chosen to fully mature — the maturing follicles produce estradiol, contributing to rising estrogen levels

• Rising estrogen triggers thickening of the endometrium (uterine lining) — the body preparing for potential pregnancy

• Testosterone also rises in the latter part of this phase, increasing libido — your body's way of signaling that ovulation is approaching

Ovulation (Lasts ~12-24 hours)

Ovulation is the report card of your menstrual cycle — and the primary way your body makes progesterone.

• LH surges and triggers release of the mature egg from the ovary

• The egg travels through the fallopian tube toward the uterus

• It has approximately 24 hours to be fertilized

• The remaining follicle becomes the corpus luteum — a temporary endocrine gland that produces progesterone

• Progesterone maintains the thickened uterine lining and causes a rise in basal body temperature and change in cervical mucus

If the egg is fertilized → pregnancy. If not → the corpus luteum disintegrates, progesterone drops, and the cycle begins again.

Ovulation is necessary for a true period. A bleed without ovulation (anovulatory cycle) means no beneficial fluctuation of estrogen and progesterone — which has downstream effects on overall health, not just fertility.

Luteal Phase (Days 15-28)

The body is either sustaining a pregnancy or restoring baseline. Without fertilization, the corpus luteum disintegrates, progesterone and estrogen drop, the endometrium sheds, and day one of a new cycle begins.

Estrogen dominance is often rooted in what happens during this phase — when progesterone is insufficient relative to estrogen, the luteal phase becomes symptomatic: mood swings, bloating, cramping, breast tenderness, and difficult periods.

What Should a Healthy Period Look Like?

Everyone's experience varies, but here are the general markers of a healthy cycle:

• Length — 3-5 days, generally no more than 7

• Flow consistency — should flow easily, similar to maple syrup in consistency. Clots or clumps (jelly-like) are a sign of hormonal imbalance

• Color — bright red is healthy. Black, pink, purple, orange, or gray can indicate hormonal discrepancies, ovarian insufficiency, PCOS, or bacterial vaginosis

• Cramping — none to light is normal. Significant cramping warrants investigation

• Clots — anything larger than a raisin may indicate hormonal imbalance or nutrient deficiencies

How to Know If You're Ovulating

Ovulation doesn't always happen on day 14 — that's a myth. The timing varies person to person and cycle to cycle. Here's how to tell if it's happening:

Signs you ARE ovulating:

• Basal body temperature (BBT) rise — progesterone causes a measurable temperature increase after ovulation that persists until your next period. Chart it daily first thing in the morning before getting up.

• Positive LH test — LH strips test for the hormone surge that precedes ovulation by 24-36 hours. Start testing after your last day of bleeding. The Mira tracker is one of our favorite tools for monitoring LH and other hormone levels with precision.

• Cervical mucus changes — as you approach ovulation, discharge takes on an egg-white texture to support sperm motility. Outside of ovulation it's typically creamy, sticky, or watery.

• Increased libido — your body is literally trying to facilitate conception. This is biology, not coincidence.

• Cervix position changes — higher, slightly more open before ovulation; lower and firmer otherwise.

Signs you may NOT be ovulating:

• No LH surge on testing

• No spike in BBT

• Irregular cycles

• Missing periods (amenorrhea)

If you suspect you're not ovulating consistently, hormone testing is the logical next step. A DUTCH test gives us a comprehensive look at estrogen, progesterone, LH, FSH, and metabolites — far more than a standard blood draw.

The Gut-Hormone Connection

Your gut plays a direct role in hormone metabolism. The estrobolome — a collection of gut bacteria responsible for metabolizing estrogen — determines how much estrogen gets properly eliminated versus recirculated. When gut health is compromised, estrogen can be reabsorbed rather than excreted, contributing to estrogen dominance, difficult periods, and hormonal symptoms.

Stress and thyroid dysfunction also directly affect cycle regularity and ovulation — which is why at GHT we never look at hormones in isolation.

The menstrual cycle is so much more than a monthly bleed. It's a monthly report card on your overall hormonal, metabolic, and gut health. Tracking your cycle — ovulation, flow, symptoms, and timing — is one of the most powerful things you can do to understand your body and advocate for yourself.

Schedule a free discovery call with our team here.