Infertility is typically identified after you’ve been trying to conceive through regular, unprotected sex for 12 months without success if you’re under 35, or 6 months if you’re 35 or older. About 1 in 6 people worldwide experience infertility at some point, so if you’re wondering whether something is wrong, you’re far from alone. But time trying isn’t the only clue. Your body often gives signals well before you start trying to conceive that something may be affecting your fertility.
Physical Signs in Women
The most telling sign is what your menstrual cycle looks like. A cycle shorter than 21 days, longer than 35 days, or one that’s unpredictable from month to month can mean you’re not ovulating regularly. Missing periods entirely is an even stronger signal. Ovulation is the non-negotiable step in natural conception, so anything that disrupts it is worth paying attention to.
Painful periods can also point to underlying problems. Severe cramping, heavy bleeding, or pelvic pain between periods may be signs of endometriosis or uterine fibroids, both of which can interfere with conception. A history of pelvic inflammatory disease, which can scar the fallopian tubes, is another red flag.
Hormonal imbalances sometimes show up in visible ways. Persistent acne, unusual hair growth on the face or body, thinning hair on the head, or unexplained weight gain can all be associated with polycystic ovary syndrome (PCOS), one of the most common causes of female infertility. PCOS causes the ovaries to produce too much of certain hormones, which prevents follicles from maturing properly and releasing an egg. Even when ovulation does occur with PCOS, hormonal imbalances can make the uterine lining less receptive to a fertilized egg.
Physical Signs in Men
Male infertility accounts for roughly half of all infertility cases, yet it often gets less attention. The signs can be subtler, but they exist. Changes in sexual function are one of the clearest indicators: difficulty maintaining an erection, problems with ejaculation, noticeably low semen volume, or reduced sex drive.
Pain, swelling, or a lump in the testicle area warrants attention. These could indicate a varicocele (enlarged veins in the scrotum), infection, or other structural issues that affect sperm production. Decreased facial or body hair, unexpected breast tissue growth, or a noticeably low energy level can signal hormonal imbalances that directly impact sperm count. A “normal” sperm count is at least 15 million sperm per milliliter of semen, and anything below that reduces the odds of conception significantly.
Some less obvious signs also matter. Recurrent respiratory infections or an inability to smell can point to rare genetic conditions that affect both the respiratory system and reproductive function.
When to Get Tested Sooner
The 12-month and 6-month timelines are general guidelines for couples with no known risk factors. Several situations call for an earlier evaluation:
- You’re over 40. Immediate evaluation is recommended rather than waiting.
- Irregular or absent periods. This includes bleeding between periods or cycles that vary widely in length.
- Known conditions. Endometriosis, PCOS, a history of pelvic inflammatory disease, or a previous ectopic pregnancy all warrant earlier testing.
- Previous cancer treatment. Chemotherapy and radiation can damage eggs and sperm.
- Repeated miscarriages. Two or more pregnancy losses suggest something beyond bad luck.
- Sexual dysfunction. Erectile problems, pain during sex, or ejaculation issues in a male partner.
- Previous sterilization procedures. Tubal ligation or vasectomy reversal doesn’t always restore full fertility.
What Fertility Testing Looks Like for Women
A fertility workup for women focuses on three main questions: Are you ovulating? Are your fallopian tubes open? How many eggs do you have left?
Ovulation is usually confirmed through blood tests and tracking your cycle. Your doctor will check hormone levels on specific days of your cycle. A blood test for a hormone called AMH (anti-Müllerian hormone) measures your ovarian reserve, which is essentially the size of your remaining egg supply. Low AMH suggests your egg count is declining faster than expected for your age. Another blood test on day 3 of your cycle measures FSH (follicle-stimulating hormone) and estrogen. When FSH is elevated early in the cycle, it often means the ovaries are working harder to stimulate egg development, which is a sign of diminishing reserve. A transvaginal ultrasound can count the small follicles visible on your ovaries, giving a direct look at how many eggs are potentially available in a given cycle.
To check whether the fallopian tubes are open, a procedure called a hysterosalpingogram (HSG) uses a small amount of dye and X-ray imaging to see if the tubes are clear or blocked. It’s done in a doctor’s office and takes about 15 to 30 minutes. If there’s concern about the uterine lining itself, a saline sonogram can detect polyps, fibroids, or scar tissue inside the uterus that might prevent implantation or increase the risk of miscarriage.
What Fertility Testing Looks Like for Men
Male fertility testing is simpler. The cornerstone is a semen analysis, which evaluates sperm count, movement, and shape. This is typically the very first test ordered because it’s non-invasive and highly informative. If results come back abnormal, hormone testing (particularly testosterone levels) and a physical exam can help identify the cause. In some cases, an ultrasound of the scrotum looks for structural issues like varicoceles.
Preparing for Your First Appointment
Walking into a fertility clinic for the first time can feel overwhelming, but a little preparation makes the visit more productive. Bring your insurance documents, any previous test results or medical records, and your partner if possible, since fertility is evaluated as a couple. You’ll be asked about your gynecological history, including past pregnancies, miscarriages, and any sterilization procedures. Your doctor will also ask about surgeries, current medications, allergies, smoking, alcohol use, and family history of genetic disorders.
If you’ve been tracking your cycles, bring that data. Even basic notes on period dates, cycle length, and any symptoms give your doctor useful starting information. The first visit is mostly conversation, a physical exam, and ordering initial bloodwork. Most people leave with a testing plan and a clearer picture of what the next few weeks will look like.
Not Knowing Yet Isn’t a Diagnosis
It’s worth remembering that struggling to conceive for a few months is statistically normal. Even in perfectly healthy couples, the chance of conception in any single cycle is only about 20 to 25 percent. Infertility is a medical definition tied to specific timelines, not a verdict after one or two disappointing months. The signs described above are reasons to pay attention and, in some cases, to seek help earlier. But many people who meet the clinical definition of infertility go on to conceive with treatment, and a significant number eventually conceive without it. The point of recognizing these signs early is to give yourself more options and more time to act on them.