Can You Get Pregnant With Endometriosis? Ask This Next

Yes, you can get pregnant with endometriosis, either without treatment or with fertility care. The condition can reduce fertility when it affects the ovaries, fallopian tubes or pelvic anatomy, yet ESHRE's 2022 guideline does not use stage alone to select care. Age, time spent trying, tubal patency, ovulation, ovarian reserve and semen results usually determine what makes sense next.

The second question is “What else does the fertility workup show?” I would put it ahead of another search for a stage-specific percentage. A stage describes disease found at surgery. A fertility workup tests the reproductive route that must function now.

I learned to separate roles while scheduling radiology appointments. One clinician orders a test, a technologist performs it, a radiologist or specialist imager reads it, and the treating clinician decides what to do with the result. Fertility imaging follows that chain. A scan report can locate an endometrioma; it cannot, on its own, choose between trying without treatment, surgery, IUI and IVF.

How much does endometriosis stage tell you about pregnancy chances?

Endometriosis stage describes the location and extent of visible disease, endometriomas and adhesions under a surgical classification such as the revised American Society for Reproductive Medicine system. Stages I and II are commonly called minimal or mild; stages III and IV are moderate or severe. The label carries useful anatomical information, though it leaves several fertility questions unanswered.

The 2026 NICE fertility guideline says the physical extent seen on imaging does not necessarily correspond to the effect on fertility or quality of life. ESHRE's 2022 guideline therefore tells clinicians to consider age, pain, previous surgery, ovarian reserve, other infertility factors and the Endometriosis Fertility Index after surgery. ESHRE also says a partner's sperm analysis belongs in that decision.

| Finding | What it can answer | What still needs checking | | --- | --- | --- | | rASRM stage I or II | Limited visible disease was documented at laparoscopy | Age, ovulation, open tubes, ovarian reserve and sperm | | rASRM stage III or IV | More extensive disease, adhesions or ovarian involvement was documented | The same broader workup; severe stage does not produce a personal pregnancy percentage | | Age and time trying | How urgently fertility is declining and whether evaluation should start | Anatomy, ovulation and sperm | | Tubal patency | Whether contrast passes through the right tube, left tube or both | Egg supply, ovulation, sperm and implantation | | AMH and antral follicle count | Likely ovarian response during assisted conception | Whether spontaneous conception will occur | | Semen analysis | Sperm number, movement and form in the submitted sample | Tubes, ovulation, ovarian reserve and endometriosis anatomy |

The comparison matters most for endometriosis stage 4 pregnancy searches. Stage IV can coexist with a patent tube, regular ovulation and semen results within reference ranges. A less extensive stage can coexist with age-related decline, bilateral tubal blockage or a substantial sperm factor. Those combinations point toward different treatment routes even when the stage attracts most of the attention.

When should you request a fertility evaluation?

Known or suspected endometriosis is a reason to request an evaluation now rather than waiting for the usual infertility deadline. The American Society for Reproductive Medicine's 2021 committee opinion starts routine evaluation after 12 months of regular unprotected intercourse for women younger than 35 and after 6 months from age 35. It calls for more immediate evaluation over age 40 and testing without delay when endometriosis or another condition associated with infertility is known or suspected.

An evaluation does not commit you to IVF or surgery. It gives the treating clinician enough information to discuss whether continued attempts without treatment have a reasonable place in your plan. NICE's 2026 guideline includes expectant management for up to 2 years among the options for endometriosis, counting time already spent trying, but requires the decision to account for age, ovarian reserve, disease severity and male-factor findings.

Bring the real duration, including the months before a diagnosis or referral. The date you began regular unprotected intercourse and the date of diagnosis describe separate clocks. The first belongs in the fertility calculation; the second explains where you are in the care pathway.

Which tests reveal what endometriosis stage misses?

A complete evaluation follows egg supply and ovulation, sperm, the uterine cavity, and the route through the tubes. ASRM recommends evaluating ovulatory status, reproductive-tract structure and patency, and semen in parallel when a male partner contributes sperm. The tests should answer named questions, rather than accumulate as an impressive pile of reports.

What can ultrasound and MRI answer?

Transvaginal ultrasound can count antral follicles, examine the uterus and ovaries, and identify ovarian endometriomas or some deep endometriosis. NICE's endometriosis guideline, updated in 2024, recommends transvaginal ultrasound even when the pelvic examination is normal. It also says a normal examination and ultrasound do not exclude endometriosis.

Specialist transvaginal ultrasound or pelvic MRI may be used to map deep disease, including involvement of the bowel, bladder or ureter. NICE specifies that these studies should be planned and interpreted by someone with specialist expertise in gynecological imaging. That sentence affects scheduling. “Pelvic ultrasound” and “specialist endometriosis mapping” may occupy similar modality slots while answering different questions.

Endometrioma diameter deserves precise handling. NICE suggests outpatient follow-up, with or without pelvic imaging, particularly when someone who chooses against surgery has one or more endometriomas larger than 3 cm. That 3 cm figure is a monitoring trigger in the guideline. It is not an automatic order for surgery. If fertility is the priority, the same guideline asks the team to weigh potential gains in spontaneous pregnancy against the effect of ovarian surgery on ovarian reserve.

What do AMH concentration and antral follicle count mean?

Anti-Müllerian hormone is a blood concentration; antral follicle count is obtained with transvaginal ultrasound. They estimate ovarian response to stimulation more reliably than they predict pregnancy without treatment. The 2026 NICE guideline explicitly says not to use AMH to predict clinical pregnancy through spontaneous conception. It supports AMH or AFC for predicting ovarian response and counseling about the likelihood of live birth after assisted conception.

There is no universal number that turns fertility on or off. NICE's 2026 evidence review illustrates the problem. One included study grouped AMH of at least 1.1 ng/mL with an AFC of at least 7 as its normal-range combination, while other studies used different assays and thresholds. NICE declined to set a single cutoff because AMH thresholds are assay-specific and the evidence was inconsistent. Read the concentration with the laboratory method, age, AFC and treatment question attached.

That distinction is especially relevant after ovarian surgery. A lower postoperative AMH or AFC may predict fewer eggs retrieved during stimulation, but it does not prove that spontaneous conception is impossible. ASRM likewise describes ovarian reserve tests as an adjunct to age and diagnosis, not a replacement for them.

Which test gives a tubal patency result?

A routine pelvic ultrasound does not show whether contrast can travel through each fallopian tube. Hysterosalpingography, or HSG, uses contrast and X-ray images to document proximal or distal blockage. ASRM recommends HSG or sonographic tubal testing for patency and warns that apparent blockage at both proximal ends on HSG needs confirmation because uterine contractions or catheter position can create an artifact.

The result needed for fertility planning is explicit: right patent or blocked, left patent or blocked, and whether contrast spills freely or becomes delayed or loculated. In the NICE pathway, known endometriosis is a comorbidity that may lead to laparoscopy with dye so tubal and pelvic disease can be assessed together. The ordering clinician chooses the route; the radiology appointment cannot settle that choice.

Which semen numbers belong beside the scan report?

The World Health Organization's sixth laboratory manual reports lower fifth percentiles from men whose partners conceived naturally within 12 months. They are 1.4 mL for semen volume, 16 million sperm per mL, 39 million per ejaculate, 42% total motility, 30% progressive motility and 4% normal forms.

WHO says those values do not divide fertile from infertile men. They describe the lower edge of a reference population, and semen results overlap between fertile and infertile groups. A report below one value calls for clinical interpretation; a report above all of them does not cancel a tubal, ovulatory or endometriosis-related factor. This is why the semen analysis should run alongside the rest of the workup.

How do the combined results change treatment?

Treatment of endometriosis for fertility begins with the route most likely to work for the whole set of findings. Hormonal suppression used for pain prevents attempts during treatment and does not improve spontaneous pregnancy rates; both NICE and ESHRE advise against using it to raise fertility while someone is trying to conceive.

Continued attempts without fertility treatment may fit when time, age, symptoms, ovulation, tubes and semen are favorable. Surgery may be discussed for pain, distorted anatomy or endometrioma-associated infertility. The decision is individual because ovarian surgery can reduce ovarian reserve, and ESHRE advises against routinely operating on an endometrioma before assisted reproduction solely to improve live-birth rates.

IUI needs enough tubal function for egg and sperm to meet. ESHRE says stimulated IUI can be considered in stage I or II disease. Its value in stage III or IV disease remains uncertain even when tubes are patent. IVF bypasses the fallopian tubes and becomes more relevant when tubal function is compromised, semen shows a male factor, the post-surgery EFI is low or previous treatment has failed.

Protocol choice remains individualized in IVF with endometriosis. ESHRE found no demonstrated difference in pregnancy or live-birth rate that would support choosing a GnRH agonist protocol over an antagonist protocol for all patients with endometriosis. The fertility specialist selects the protocol from ovarian response, history and treatment preferences.

What are the actual pregnancy odds with endometriosis?

ESHRE's 2022 patient guideline estimates that 60% to 70% of women with endometriosis are fertile and can become pregnant spontaneously. This is a broad population estimate, rather than a monthly chance or a prediction for a particular stage. Personal odds change with age, time trying, EFI after surgery, tubal status, ovarian reserve, ovulation and sperm.

For IVF, national data can supply a benchmark with a clearly defined denominator. The Society for Assisted Reproductive Technology's final 2023 national summary reports live births per intended egg retrieval using a patient's own eggs and counting all embryo transfers linked to that retrieval:

| Age at cycle start | Live birth per intended egg retrieval | | --- | ---: | | Under 35 | 53.2% | | 35 to 37 | 39.9% | | 38 to 40 | 26.2% | | 41 to 42 | 13.2% | | Over 42 | 4.1% |

These national rates cover all diagnoses treated at SART member clinics, so they cannot promise an endometriosis-specific result. They do show why “per cycle” needs a definition. A rate per embryo transfer excludes cycles that never reach transfer, while SART's intended-retrieval measure starts earlier and includes later transfers from the same egg retrieval. Ask a clinic to use the same denominator when comparing its figure with the national table.

Can pregnancy with endometriosis be safe?

Most people with endometriosis who become pregnant do not experience a complication caused directly by an endometriosis lesion. ESHRE says clinicians should be aware of a possible increased risk of first-trimester miscarriage and ectopic pregnancy. It describes complications directly related to existing lesions as rare and probably underreported.

The same ESHRE guideline says the available low- to moderate-quality findings do not justify routinely increased antenatal monitoring or discouraging pregnancy. Care still follows the person's actual history and obstetric findings. NHS ectopic-pregnancy guidance advises prompt medical assessment for one-sided lower abdominal pain or vaginal bleeding when pregnancy is possible, and emergency care for intense pain with dizziness or fainting.

An endometrioma may change appearance during pregnancy. ESHRE recommends referral to a center with appropriate expertise if an ultrasound finds an atypical endometrioma. Here again, the report describes the finding; a specialist decides whether it represents an expected pregnancy-related change or needs another step.

What changes if you have endometriosis and PCOS?

Endometriosis and PCOS pregnancy planning requires two parallel questions. Endometriosis can affect pelvic anatomy, tubes and ovaries; PCOS can disrupt ovulation. The 2023 International Evidence-Based PCOS Guideline treats anovulatory infertility as a distinct care pathway. The clinician may confirm ovulatory status while completing the same tubal, ovarian-reserve and semen workup.

The diagnoses do not cancel each other or merge into one stage. Treatment follows the active bottleneck. Ovulation induction may address anovulation, whereas blocked tubes can shift the discussion toward IVF. An endometrioma or previous ovarian surgery adds the reserve and imaging questions already described.

What should you take to the fertility appointment?

A one-page fertility file prevents the referral from becoming a hunt for a missing report. Build it in this order:

1. Record your age, cycle pattern and the total time spent having regular unprotected intercourse, including months before the endometriosis diagnosis.
2. List every pelvic surgery and hormone treatment, then attach operative notes and pathology reports when available. A discharge summary rarely contains enough detail to calculate an EFI.
3. Attach the full ultrasound or MRI report, including endometrioma measurements and location. Bring images or the facility's image-sharing instructions if the specialist requested them.
4. Add AMH with units and assay information, AFC, the tubal patency report and the complete semen analysis. Mark any item that has been ordered but remains unscheduled.

Ask the treating clinician to state which result currently limits the plan and what result would change it. That answer is more useful than leaving with “stage IV” circled for the third time.

What else do people ask about endometriosis and pregnancy?

Can you get pregnant naturally with stage 4 endometriosis?

Yes. Stage IV endometriosis can make natural conception less likely when adhesions, endometriomas or tubal damage interfere, yet stage alone cannot determine your chance. Age, ovulation, whether either tube is patent, ovarian reserve, semen results and prior surgery are needed before a fertility specialist can estimate a useful range.

What are the chances of getting pregnant with endometriosis?

ESHRE's 2022 patient guideline estimates that 60% to 70% of women with endometriosis are fertile and can conceive spontaneously. That population estimate is neither a monthly chance nor a personal forecast. Age, time trying, tubal patency, ovulation, ovarian reserve, semen findings and the Endometriosis Fertility Index refine an individual's odds.

Does endometriosis make pregnancy high risk?

ESHRE reports a possible increased risk of first-trimester miscarriage and ectopic pregnancy, while complications directly caused by existing endometriosis lesions are rare. Current evidence does not support automatically increasing antenatal monitoring for every pregnant patient with endometriosis. Your obstetric plan should follow symptoms, history, scan findings and other individual risks.

Can you have endometriosis and PCOS and still get pregnant?

Yes. Pregnancy can occur with both conditions, without treatment or after targeted fertility care. PCOS may interfere with ovulation, while endometriosis may affect ovaries, tubes or pelvic anatomy. A combined workup identifies the current limiting factor and may lead to ovulation treatment, surgery, IUI or IVF according to the complete results.