Preparing for IUI (intrauterine insemination) starts weeks before the actual procedure and involves medical screening, medications to stimulate ovulation, lifestyle adjustments, and knowing what to expect on procedure day. The per-cycle pregnancy rate averages about 11%, and being well-prepared at each stage gives you the best chance of success.
Medical Screening Before You Start
Before your first IUI cycle begins, both you and your partner (if applicable) will go through a round of baseline testing. This typically includes a pelvic exam, a transvaginal ultrasound to evaluate your uterus, blood work for hormone levels and infectious disease screening, and a semen analysis to assess sperm count, movement, and shape.
One of the most important pre-IUI tests checks whether your fallopian tubes are open. This is usually done with a hysterosalpingogram (HSG), an X-ray where dye is flushed through the tubes, or with a similar ultrasound-based test. IUI works by placing sperm directly into the uterus, so at least one open tube is essential for the sperm to reach the egg. Your clinic will also run STI screening and prenatal blood panels before clearing you to start a cycle.
Medications That Stimulate Ovulation
Some IUI cycles are done without medication (called “natural cycle” IUI), but most use oral drugs to encourage your ovaries to develop one or two mature follicles. The two most common options are clomiphene citrate and letrozole. Clomiphene citrate has been the go-to for over four decades: a typical dose is 100 mg per day taken on cycle days 3 through 7. Letrozole is increasingly popular and is usually taken at 2.5 mg per day, often on cycle days 3 through 7, though some protocols extend it through day 9.
Your clinic will monitor follicle growth with ultrasounds, typically starting around cycle day 10 or 11. Each monitoring ultrasound costs roughly $230 on top of the base procedure fee, so expect two or three visits. When at least one follicle reaches about 18 mm in diameter, you’ll receive a “trigger shot” of hCG to prompt ovulation within the next 24 to 36 hours. The IUI is then timed to coincide with that window.
How Sperm Is Prepared
On procedure day, the sperm sample goes through a process called “washing” before it’s used. The lab places the sample in a density gradient solution and spins it in a centrifuge. This separates the healthiest, most motile sperm from seminal fluid, dead cells, and debris. The final washed sample is concentrated into a small volume of about 0.3 to 0.5 mL.
The total number of motile sperm after washing matters. Research shows pregnancy rates climb significantly when the post-wash motile sperm count reaches 10 million or more, with rates around 40% in that group compared to roughly 20% when the count falls below 5 million. If a semen analysis shows very low motile counts before you even start, your doctor may discuss whether IUI is likely to work or whether IVF would be a better use of your time and money.
Lifestyle Changes in the Weeks Before
There’s no magic diet that dramatically improves IUI outcomes, but a few evidence-backed strategies can help optimize egg and sperm quality in the months leading up to your cycle.
A prenatal vitamin with folic acid and B12 is standard. Higher blood levels of both have been linked to better live birth rates in assisted reproduction. CoQ10, a supplement that supports cellular energy production, has shown benefits for egg quality in women with diminished ovarian reserve and for sperm quality in men. Dosages in studies range from 200 to 600 mg per day, taken for at least 8 weeks before treatment. CoQ10 is fat-soluble, so taking it with a meal that contains some fat improves absorption. Vitamin D supplementation may also help, particularly for women with PCOS, where it appears to support more regular ovulation.
For the sperm provider, the basics apply: avoid excessive heat exposure (hot tubs, saunas, laptops on the lap), limit alcohol, and maintain a healthy weight. Sperm take about 72 days to mature, so lifestyle changes ideally start two to three months before IUI.
What to Expect on Procedure Day
The sperm sample needs to be produced and delivered to the lab first thing in the morning, typically between 8 and 9 a.m. If producing the sample at home, you’ll use a sterile container provided by the clinic, keep it close to your body for warmth, and deliver it within 45 minutes. The lab then takes about 60 to 90 minutes to wash and prepare the sample.
The IUI itself is quick. You’ll lie on an exam table, and a thin, flexible catheter is threaded through the cervix to deposit the washed sperm directly into the uterus. Most people describe it as similar to a Pap smear, with mild cramping that lasts a few seconds. The whole procedure takes under 10 minutes. You don’t need a full bladder for IUI (unlike some ultrasound procedures), and you can drive yourself home afterward.
Activity Guidelines After the Procedure
Rest on the day of the procedure and possibly the following day. Within 24 to 48 hours, light movement like walking and gentle stretching is fine. Doctors generally recommend taking it easy for the first 2 to 5 days before easing back into a normal routine.
During the two-week wait between the procedure and your pregnancy test, avoid heavy lifting over 10 to 15 pounds, high-impact cardio like running or jumping, intense core work, and anything that causes overheating (hot yoga, saunas, steam rooms). The concern is that strenuous activity could trigger stronger uterine contractions, raise cortisol levels, or reduce blood flow to the uterus during the window when an embryo would be implanting. A good rule of thumb: if a workout leaves you exhausted, drenched in sweat, or physically strained, save it for after your pregnancy test.
Cost and Planning for Multiple Cycles
A single IUI cycle costs around $735 for the procedure itself, which typically covers sperm preparation and one ultrasound. Monitoring ultrasounds, medication, and blood work are extra. All in, most people pay $1,000 to $2,500 per cycle depending on the medication protocol and how much monitoring is needed. Insurance coverage varies widely, so check your plan before you start.
With a per-cycle success rate around 11%, and with age over 35 reducing the odds by roughly 37%, most clinics recommend trying three to four IUI cycles before moving to IVF. Budgeting for multiple attempts from the start helps reduce financial stress mid-treatment. Some clinics offer multi-cycle packages at a reduced rate.
A Typical IUI Cycle Timeline
- Cycle day 1: First day of your period. Call your clinic to schedule baseline bloodwork and ultrasound.
- Cycle days 3 to 7 (or 9): Begin oral medication (letrozole or clomiphene citrate) as prescribed.
- Cycle days 10 to 12: Monitoring ultrasounds to check follicle size. Blood work may be drawn to measure hormone levels.
- Trigger day: Once a follicle reaches approximately 18 mm, you’ll take the trigger shot in the evening.
- IUI day (24 to 36 hours after trigger): Sperm sample collected and washed in the morning, procedure performed the same day.
- Days 1 to 14 post-IUI: The two-week wait. Light activity only, prenatal vitamins, and progesterone support if prescribed.
- About 14 days post-IUI: Blood pregnancy test at the clinic.