Infertility testing typically involves both partners and combines blood work, imaging, and lab analysis to pinpoint what’s preventing conception. The standard recommendation is to begin testing after 12 months of unprotected sex without pregnancy if you’re under 35, or after 6 months if you’re 35 or older. For women over 40, earlier evaluation is often warranted. Most of the basic workup can be completed within one to two menstrual cycles.
When Testing Begins
A fertility evaluation usually starts with both partners at the same time, since roughly a third of infertility cases trace to the male partner, a third to the female partner, and the remaining third to a combination or no identifiable cause. Starting with both partners avoids months of one-sided testing that may not reveal the full picture.
Your first appointment is a detailed medical history and physical exam. Expect questions about cycle regularity, sexual habits, prior pregnancies or miscarriages, surgeries, medications, and lifestyle factors like smoking or alcohol use. From there, your doctor maps out which tests to run and when, since some female hormone tests need to happen on specific days of the menstrual cycle.
Blood Tests for Women
Hormone blood tests check whether your body is producing the right signals to release and support an egg each month. Fertility specialists commonly measure progesterone, estradiol, thyroid stimulating hormone (TSH), and prolactin. Each of these plays a different role: progesterone confirms whether you actually ovulated, estradiol reflects egg development, TSH screens for thyroid problems that can disrupt cycles, and prolactin rules out a pituitary issue that can shut down ovulation.
A separate test called ovarian reserve testing measures anti-Müllerian hormone (AMH). This hormone is produced by the small follicles in your ovaries, so the level in your blood reflects how many eggs you have left compared to others your age. Typical AMH values decline steadily over time. At age 25, a lower-end normal reading is around 3.0 ng/mL. By 35 that drops to about 1.5 ng/mL, and by 40 it’s closer to 1.0 ng/mL. A low AMH doesn’t mean you can’t conceive, but it does affect decisions about timing and treatment urgency.
Most blood test results come back within a few days, though your doctor may need to wait for the right point in your cycle to draw certain samples, which can stretch the process to a few weeks.
Tracking Ovulation
Beyond blood work, your doctor may ask you to track ovulation at home using urine test strips that detect a hormone surge about 24 to 36 hours before an egg is released. This confirms that ovulation is happening and helps time other tests. In some cases, a mid-cycle progesterone blood draw about a week after expected ovulation provides more objective confirmation. If your cycles are irregular or absent, this step alone can point toward conditions like polycystic ovary syndrome or hypothalamic dysfunction.
Checking the Uterus and Fallopian Tubes
Even if your hormones look normal, a structural problem can prevent pregnancy. The primary test for this is a hysterosalpingogram, commonly called an HSG. During the procedure, a contrast dye is injected through the cervix into the uterus and fallopian tubes while X-ray images are taken in real time. If the dye flows freely through both tubes and spills out the ends, the tubes are open. If the dye hits a barrier and stops, that tube is blocked.
An HSG also outlines the shape of the uterine cavity, which can reveal fibroids, polyps, scar tissue, or structural variations in uterine shape that might interfere with implantation. The test takes about 15 to 30 minutes. Most women describe it as uncomfortable, with cramping similar to period pain, but it’s usually tolerable without sedation. Conditions that can cause tubal blockage include endometriosis, prior ectopic pregnancy, sexually transmitted infections, and internal scarring.
Transvaginal Ultrasound
A transvaginal ultrasound is often done alongside or before the HSG. During the early part of your cycle, a small probe is used to visualize the ovaries and count the antral follicles, the small fluid-filled sacs (measuring 2 to 10 mm) that each contain an immature egg. This antral follicle count, combined with your AMH level, gives your doctor a clearer picture of ovarian reserve than either test alone. The ultrasound also checks for ovarian cysts, fibroids, and other visible abnormalities in the uterus or surrounding tissue.
Semen Analysis for Men
A semen analysis is the cornerstone of male fertility testing. It’s non-invasive and typically the very first test ordered for the male partner. You provide a sample, usually through ejaculation into a sterile cup at the clinic or at home with a short transport time. The lab evaluates several key measurements.
Based on World Health Organization reference values, a normal result meets these minimums: sperm concentration of at least 15 million per milliliter, total motility (the percentage of sperm that are moving) of at least 40%, and normal shape in at least 4% of sperm. Falling below any of these thresholds doesn’t guarantee infertility, but it signals that sperm quality may be contributing to the difficulty. Because sperm production fluctuates, an abnormal result is usually confirmed with a second sample a few weeks later.
Results are typically available within 24 to 48 hours, though some labs take up to three weeks depending on the complexity of the analysis.
Male Hormone Testing
Blood work isn’t routine for every man undergoing fertility evaluation. It’s ordered when the semen analysis shows no sperm at all or an extremely low count. In those cases, the lab measures FSH, LH, free and total testosterone, and prolactin. These hormones control sperm production, so abnormal levels can distinguish between a hormonal cause (which may be treatable with medication) and a physical obstruction or testicular problem that might require a different approach.
When Imaging and Blood Work Aren’t Enough
Sometimes every standard test comes back normal but pregnancy still isn’t happening. This is called unexplained infertility, and it accounts for a significant portion of cases. Diagnostic laparoscopy, a minimally invasive surgery under general anesthesia, is considered the gold standard for finding problems that imaging misses.
A small camera is inserted through a tiny incision near the navel, allowing the surgeon to directly inspect the fallopian tubes, ovaries, and surrounding tissue. Research on women with unexplained infertility who underwent laparoscopy found that 44% had endometriosis, 20% had tubal problems, and 16% had adhesions (scar tissue binding organs together). Most of the endometriosis was minimal or mild, the kind that doesn’t show up on ultrasound but can still impair fertility. This is why laparoscopy is strongly considered when the basic workup doesn’t explain the problem, particularly before committing to more aggressive treatments.
The tradeoff is that it’s a surgical procedure with the risks of general anesthesia, potential complications, and recovery time. For some couples, the findings from laparoscopy change the treatment plan entirely, either by identifying a treatable issue or by accelerating the move to IVF rather than continuing with less targeted approaches.
How Long the Full Workup Takes
The timeline depends partly on where you are in your menstrual cycle when you start. Some hormone tests need to be drawn during the first few days of your period, while others happen mid-cycle or a week after ovulation. If your timing lines up well, most of the female workup can be completed in a single cycle, roughly four to six weeks. Male testing is faster since it isn’t tied to a cycle. A semen analysis can be done at any time, with results back in days.
In practice, scheduling delays, repeat tests, and waiting for specialist appointments can stretch the process. Expect the full picture to come together over one to two months for most couples, with surgical investigation adding more time if needed.