Getting pregnant at 45 is possible but rare, and speed matters more now than at any other age. About 87% of women are infertile by 45, and the chance of a successful pregnancy drops with every passing month. The single most important step is seeing a reproductive endocrinologist immediately, not after months of trying on your own.
What the Numbers Actually Look Like at 45
Fertility declines in two phases: a slow, steady drop between ages 20 and 35, then a sharp acceleration over the next decade. By 45, natural conception is statistically unlikely. Among populations studied without contraception use, 87% of women at 45 were infertile. One British study found that natural fertility essentially dropped to zero by age 42.
Even when pregnancy does occur, the miscarriage rate at 45 and older is about 54%, compared to roughly 10% for women in their late twenties. This means that even a positive pregnancy test has close to a coin-flip chance of ending in loss, largely because of chromosomal problems in the eggs.
These numbers aren’t meant to discourage you. They’re meant to redirect your energy toward the approaches that actually work at this age, rather than spending months on strategies designed for younger women.
Skip the Waiting Period and See a Specialist Now
For women under 35, doctors typically recommend trying for a full year before investigating fertility issues. Between 35 and 40, that window shrinks to six months. If you’re over 40, the American Academy of Family Physicians recommends starting a fertility evaluation immediately. At 45, every month counts.
A reproductive endocrinologist will run three key tests to assess where you stand. Blood work measures your anti-Müllerian hormone (AMH), which reflects how many eggs you have remaining. A second blood test on day 2 or 3 of your cycle checks follicle-stimulating hormone (FSH), which indicates egg quality. Higher FSH levels suggest your body is working harder to stimulate eggs that are less responsive. Finally, a transvaginal ultrasound counts the small follicles visible in your ovaries, called the antral follicle count.
These results together paint a realistic picture of your fertility window and help determine whether trying with your own eggs is viable or whether donor eggs would give you a significantly better chance.
IVF With Your Own Eggs vs. Donor Eggs
This is where honesty becomes critical. IVF with your own eggs after age 45 has a live birth rate near zero. Research published in reproductive medicine journals describes IVF with a woman’s own eggs past 45 as “futile.” The chance of producing a chromosomally normal embryo at this age is extremely small.
Donor egg IVF changes the equation dramatically. Because the eggs come from a younger woman (typically in her 20s or early 30s), the age of your uterus matters far less than the age of the egg. Women over 44 using their own eggs have roughly a 2% implantation rate. With donor eggs, that jumps to 75 to 85%. Overall pregnancy success rates with donor eggs reach up to 75%, compared to about 6% for women aged 43 to 50 using their own eggs.
If your goal is to get pregnant as fast as possible at 45, donor egg IVF is the most reliable path. Many women initially resist this option because of the genetic connection, but it’s worth understanding that you still carry and deliver the baby, and your body shapes the pregnancy through gene expression in ways science is only beginning to understand.
What You Can Do Right Now to Optimize Your Chances
Whether you pursue natural conception, IVF with your own eggs, or donor eggs, your body’s overall health directly affects implantation, pregnancy maintenance, and outcomes. Start with these steps today.
Take 400 to 800 micrograms of folic acid daily. This is non-negotiable for reducing the risk of neural tube defects like spina bifida, and it’s recommended for anyone planning or capable of pregnancy. Stop smoking and stop drinking alcohol completely. Both reduce fertility and increase pregnancy complications.
Get existing health conditions under control before conceiving. Diabetes, high blood pressure, thyroid disorders, and obesity all affect pregnancy outcomes and can worsen during pregnancy. Your doctor should screen for these and help you manage them proactively. At 35 and older, genetic counseling is also recommended to understand your risk profile for chromosomal conditions.
Supplements for Egg Quality
CoQ10 has the strongest evidence base for supporting egg quality in women with diminished ovarian reserve. Clinical studies have used 600 mg per day for 60 days and found improved ovarian response. Other trials used 200 mg three times daily. CoQ10 works by supporting the energy production inside eggs, which declines significantly with age. If you’re attempting IVF with your own eggs, this supplement is worth discussing with your specialist well before your cycle begins, since it takes at least 60 to 90 days to have an effect.
DHEA, a hormone supplement, has been studied in combination with CoQ10 for women with low ovarian reserve. Some trials showed it increased the number of developing follicles, though it didn’t clearly improve pregnancy rates on its own. Your reproductive endocrinologist can determine whether DHEA is appropriate based on your hormone levels.
Timing Intercourse if You’re Trying Naturally
If you still have regular menstrual cycles and want to try naturally while pursuing medical options, precise timing is essential. Use ovulation predictor kits to detect your luteinizing hormone surge, which signals that ovulation will occur within 24 to 36 hours. Have intercourse on the day of the positive result and the following day.
Track your cycles for patterns, but don’t spend months doing only this. At 45, natural conception odds per cycle are extremely low. Trying naturally is reasonable as a parallel strategy while you’re setting up appointments and running tests, but it should not replace medical evaluation. Think of it as something you do in addition to seeing a specialist, not instead of.
Pregnancy Risks to Prepare For
Pregnancies at 45 carry higher rates of gestational diabetes, high blood pressure, preeclampsia, placenta problems, and cesarean delivery. The 54% miscarriage rate means early pregnancy monitoring will be closer and more frequent than for younger women. Chromosomal testing of the fetus, through noninvasive blood screening or more definitive procedures, is standard at this age.
If you do conceive, expect more frequent prenatal visits, additional ultrasounds, and closer monitoring throughout. Pregnancies at 45 are medically classified as high-risk regardless of how healthy you are, and your care team will adjust accordingly. None of this means a healthy pregnancy is impossible. It means the medical support around you will be more intensive, which is ultimately protective.
A Realistic Action Plan
The fastest path to pregnancy at 45 looks like this: call a reproductive endocrinologist this week. Get your AMH, FSH, and antral follicle count tested. Start folic acid and CoQ10 immediately. Eliminate alcohol and tobacco. Have an honest conversation with your specialist about whether your own eggs are viable or whether donor eggs give you the best chance. If donor eggs are recommended, many clinics can match you with a donor and begin a cycle within one to three months.
Time is the one resource you cannot get back at this stage. The difference between starting today and starting in six months could be the difference between a viable pregnancy and a closed window.