Oova Review: It Measures Progesterone - Which Is What Ovulation Strips Cannot Do

Three hormones, three different jobs. LH — luteinizing hormone. The surge that triggers ovulation, typically 24 to 36 hours beforehand. This is what every ovulation strip measures, and it identifies the fertile window prospectively — which is what matters for timing intercourse, because sperm survive several days in the reproductive tract while an egg is viable for around 12 to 24 hours. Timing intercourse in the days leading up to ovulation matters more than the day itself. E3G — estrone-3-glucuronide, an estrogen metabolite. Estrogen rises before ovulation as the follicle develops. Tracking it widens the identified fertile window rather than pinpointing a single day, which is useful. PdG — pregnanediol glucuronide, a progesterone metabolite. This is the one that matters most and is missing from ordinary kits. Progesterone rises after ovulation, and a sustained rise is the standard indication that ovulation occurred. Clinically, a mid-luteal serum progesterone is exactly what a doctor orders to confirm ovulation, so measuring its urinary metabolite at home is doing something genuinely analogous. Why the combination is more useful than any one of them: LH tells you when to try. PdG tells you whether it worked. Without the second, you can spend months timing perfectly around surges that never produced an egg. Irregular cycles are where strips fail worst. In PCOS, multiple LH rises are common and strips can show repeated false positives. Quantitative measurement with a progesterone confirmation handles that far better. A short luteal phase — the interval between ovulation and the next period — is something you can only see if you know when ovulation actually happened. On the accuracy claim. The site states 99% correlation to blood testing in independent lab testing. Correlation is a measure of how well two methods track together — it is a meaningful statistic and it is not the same as saying a home reading equals a blood result. Urinary metabolites reflect what happened over a period rather than a point-in-time serum level, and hydration affects urine concentration. Treat the numbers as a well-correlated trend tool rather than as a substitute for a lab draw when a lab draw is what your doctor needs. Ask the company directly about regulatory status before purchase — specifically whether the test carries FDA clearance and for what intended use, since at-home diagnostic products vary considerably here and it determines what weight a clinician will give the results. Practical points that affect your results: Test at a consistent time of day, since hormone levels vary diurnally. LH is often recommended in the afternoon rather than first morning urine. Hydration matters. Very dilute urine can affect readings; do not drink large volumes immediately before testing. Some fertility medications alter hormone patterns, which the company acknowledges — that is a reason to interpret results with your clinic rather than alone. Hormonal contraception suppresses these hormones, so testing on the pill, implant or hormonal IUD will not tell you what you want to know. A positive PdG rise does not confirm pregnancy and is not a pregnancy test.

The product is also sold for perimenopause, and this deserves the most careful handling in the review, because it is where at-home hormone testing is weakest. The clinical position, which is well established: Perimenopause is diagnosed clinically — from your age, your symptoms and your menstrual pattern — not from a hormone test. Major menopause and gynaecology bodies advise against relying on hormone testing to diagnose perimenopause or menopause in women over 45, because hormone levels fluctuate enormously and unpredictably during the transition. A single measurement can look premenopausal one week and postmenopausal the next, and neither changes the diagnosis or the treatment. Hormone testing is more useful in specific situations — suspected primary ovarian insufficiency under 40, unusual presentations, or where another condition needs excluding. So what is the honest case for tracking hormones through perimenopause? Pattern data over time is more informative than a single reading, and a system that tracks trends across months is doing something different from a one-off test. It can be genuinely validating. Many women are told their symptoms are unrelated to hormones; having data to bring to an appointment can change a conversation. It may help you and a clinician understand your own cycle changes. And the honest limits: It will not tell you when you will reach menopause. It should not determine whether you start or stop hormone therapy. That is a clinical decision based on symptoms, history and risk. A "normal" reading does not mean your symptoms are not perimenopausal, and an "abnormal" one does not confirm they are. Symptoms that need medical assessment rather than tracking: Any bleeding after 12 months without a period. Postmenopausal bleeding always needs investigation — it is the cardinal symptom for endometrial cancer and is treatable when found early. This is the single most important sentence in this section. Very heavy bleeding, bleeding between periods, or bleeding after sex. Periods stopping before age 40, which may indicate primary ovarian insufficiency and has long-term bone and cardiovascular implications requiring treatment. Severe mood symptoms, which are common in perimenopause and are treatable. New severe headaches, palpitations or unexplained weight change, which may reflect thyroid disease rather than perimenopause — the symptoms overlap substantially and a thyroid test is a reasonable ask. And on "hormone optimization" as a category. That phrase has no agreed clinical definition. Treating a number rather than a symptom is how people end up on unnecessary treatment. Data is useful when it informs a conversation with a clinician; it becomes a problem when it drives self-directed intervention.

This is the most valuable section for anyone trying to conceive, because the commonest costly mistake in this category is tracking for too long before seeking help. Standard guidance on when to seek a fertility evaluation: Under 35: after 12 months of regular unprotected intercourse without conceiving. 35 and over: after 6 months. This threshold is shorter deliberately, because time matters more with age and the workup itself takes months. Over 40: seek evaluation without waiting. Immediately, at any age, if you have: absent or irregular periods; known or suspected PCOS or endometriosis; a history of pelvic inflammatory disease, pelvic surgery or ectopic pregnancy; two or more pregnancy losses; known male factor issues; a history of cancer treatment; or a partner with known fertility problems. And a point that gets missed constantly: fertility is not only a female issue. A male factor is involved in a substantial share of cases, and a semen analysis is cheap, quick, non-invasive and should be done early rather than after months of female-side testing. If you are being evaluated, ask whether your partner has been. What an evaluation actually involves, so it is less daunting: history and examination, blood tests including hormone levels and thyroid function, an assessment of ovarian reserve, imaging of the uterus and tubes, and a semen analysis. Home tracking data can be a genuinely useful input to that conversation — bring it. Things worth doing regardless of testing: Take folic acid before conceiving. Guidance is generally 400 micrograms daily for anyone who could become pregnant, starting at least a month before conception, to reduce neural tube defects — higher doses in specific circumstances on medical advice. This is one of the best-evidenced interventions in preventive medicine and it is cheap. Stop smoking and limit alcohol. Both affect fertility in both partners. Review your medications with a clinician, since some are unsafe in pregnancy and some affect fertility. Get up to date on rubella immunity and other preconception checks. Note that most lubricants impair sperm motility — use one specifically formulated for use when trying to conceive. Aim for intercourse every one to two days across the fertile window rather than saving up for a single perfectly-timed attempt. On the emotional side, which no product page mentions. Daily hormone testing can increase anxiety as easily as it reduces it. Some people find data reassuring and controlling; others find it turns every month into a series of measurable disappointments. If tracking is making things worse, it is legitimate to stop. Fertility difficulties are associated with significant psychological distress, and support — from a counsellor familiar with fertility, or a peer support group — is a reasonable thing to seek rather than a sign of failure. On cost. Between kits, replacement strips and any membership tier, this is an ongoing expense. Ask before subscribing: what a month of testing actually costs, whether strips are sold separately, whether the app works without a membership, what the cancellation route is, and whether it is HSA or FSA eligible — many diagnostic and fertility products are, and that is a meaningful saving on pre-tax dollars.

What does Oova measure? LH, E3G (an estrogen metabolite) and PdG (a progesterone metabolite) from a urine strip, read by your phone camera, with results in the app in under 10 minutes. How is that different from ovulation strips? Ordinary strips measure LH, which predicts ovulation. Only a progesterone measure indicates that ovulation actually happened — you can have an LH surge without releasing an egg. How accurate is it? The company states a 99% correlation to blood testing in independent lab testing. Correlation means the two methods track together closely; it is not the same as a home reading equalling a serum result. Ask the company directly about FDA clearance and intended use. Will it work if my cycles are irregular? This is where it should perform best relative to strips. In PCOS, multiple LH rises commonly cause repeated false positives on ordinary kits, and quantitative measurement with progesterone confirmation handles that better. Do fertility medications affect the readings? Yes, many alter hormone behaviour. Interpret results with your clinic rather than alone. Can I use it on hormonal contraception? No useful result — hormonal contraception suppresses these hormones. Can it diagnose perimenopause? No. Perimenopause is diagnosed clinically from age, symptoms and menstrual pattern. Major menopause bodies advise against relying on hormone tests for diagnosis over 45, because levels fluctuate unpredictably. Should hormone data decide whether I take HRT? No. That is a clinical decision based on symptoms, history and risk. When should I stop tracking and see a doctor? After 12 months of trying under 35, 6 months at 35 or over, and without waiting over 40 — or immediately with irregular periods, known PCOS or endometriosis, prior pelvic surgery or infection, or recurrent loss. Should my partner be tested too? Yes, early. A semen analysis is quick, inexpensive and non-invasive, and male factor is involved in a substantial share of cases. What should I do regardless? Take 400 micrograms of folic acid daily starting at least a month before conceiving, stop smoking, limit alcohol, review medications with a clinician, and use a lubricant formulated for use when trying to conceive. What are the ongoing costs? Ask what a month of testing costs, whether strips are sold separately, whether the app needs a membership, the cancellation route, and whether it is HSA or FSA eligible.