
Fertility Over 40
Am I Too Old to Have a Baby In My Late 40s?
August 8, 2025
Last updated:
August 8, 2025

More women than ever are having children in their 40s, with many building successful families through various paths to parenthood. In fact, women in their 40s are the fastest-growing age group of new mothers in the United States.
While starting or expanding your family later may present unique considerations, advances in reproductive medicine have created new possibilities for those over 40.
In this article, we'll talk about the realities of having a baby in your 40s, from unassisted conception to IVF and donor eggs. We'll look at success rates with different approaches, discuss specific health considerations, and explore how options like egg donation have helped thousands of women become mothers in their 40s and beyond.
Understanding fertility after 40
Age-related fertility decline is a biological fact, but that doesn't mean parenthood is out of reach. At birth, women have about 1 million eggs. By age 40, that number drops to around 25,000, with egg quality also declining significantly. This decline means:
- Pregnancy occurs in about 5% of women per unassisted cycle at age 40
- By age 43, the pregnancy rate per cycle drops to 2%
- At age 45, natural conception rates are below 1% per cycle
These statistics reflect natural conception attempts. However, fertility treatments can significantly improve these odds for many women.
Your biological clock explained
Female fertility involves both egg quantity (ovarian reserve) and egg quality. After 40, both factors affect conception chances:
- Egg quantity: The number of remaining eggs decreases steadily with age. Fewer eggs mean fewer chances for successful conception each month.
- Egg quality: As eggs age, they're more likely to have chromosomal abnormalities. This leads to lower fertilization rates, increased miscarriage risk, and higher rates of chromosomal conditions.
Of course, male fertility also has an impact. Male fertility also starts to decline around age 40, with sperm quality and quantity decreasing as men age. While there’s much less research on male fertility, studies do show that older fathers have a lower chance of conception, increased time to pregnancy, and potentially higher risks of miscarriage.
Read more in What You Need to Know About Getting Pregnant In Your 40s
Health considerations for pregnancy after 40
While many women have healthy pregnancies in their 40s, certain risks increase with age:
Pregnancy complications:
- Higher rates of gestational diabetes
- Increased risk of high blood pressure
- Greater chance of placental issues
- Higher cesarean section rates
As such, pregnancies after 40 typically involve:
- More frequent prenatal visits
- Additional screening tests
- Closer monitoring throughout pregnancy
That being said, there has been a significant shift in U.S. birth rates for women over 40! In fact, 4.1% of all births in 2023 were to women over 40, surpassing the rate of births to teenagers for the first time. And most women have safe, healthy pregnancies and births.
Fertility treatment options after 40
There are several fertility treatment options for women in their late 40s, including IVF.
IVF with your own eggs
In vitro fertilization (IVF) can help some women conceive using their own eggs. The chances of a live birth after one cycle vary significantly by age*:
Age 41: 16%
Age 42: 11%
Age 43: 8%
Age 44: 5%
Age 45: 3%
Age 46: 2%
Age 47: 1%
Age 48: 1%
Age 49: 0%
*Data calculated using the CDC IVF Success Estimator for a woman 140 lbs, 5’4”, first time doing IVF, no prior pregnancies, using their own eggs, with no specific infertility diagnosis.
IVF using donor eggs
Egg donation has become an increasingly popular option for women over 40 as it greatly increases the chances of success. As you can see below, the chances of a live birth using donor eggs does not vary as much by age:
Age 41: 55%
Age 42: 55%
Age 43: 54%
Age 44: 54%
Age 45: 54%
Age 46: 53%
Age 47: 53%
Age 48: 52%
Age 49: 52%
*Data calculated using the CDC IVF Success Estimator for a woman 140 lbs, 5’4”, first time doing IVF, no prior pregnancies, using donor eggs, with no specific infertility diagnosis.
Read more in Fertility Treatment Options as a Single Mom By Choice (SMBC) Over 40
The advantages of donor eggs
For many women in their late 40s, using donor eggs can be the fastest and most effective path to parenthood. This option opens the door to higher chances of success, especially when age-related fertility decline makes conceiving with your own eggs more difficult.
One of the most compelling advantages of donor eggs is the significantly higher success rate. What’s more, these success rates stay relatively consistent regardless of the recipient’s age, since the quality of the egg (rather than the age of the uterus) is the key factor.
Donor eggs also lower the risk of miscarriage, which tends to increase with age due to chromosomal abnormalities in older eggs. Because egg donors are young and thoroughly screened, the chances of chromosomal issues are much lower, which contributes to a healthier pregnancy from the start.
Another benefit of using donor eggs is the ability to match with a donor based on specific criteria that may be important to you—such as physical characteristics, personality traits, education, or a shared cultural background. Some women find comfort and empowerment in being able to play a role in selecting the person who will help them build their family.
Finally, for women who have experienced multiple failed IVF cycles or recurrent pregnancy loss, donor eggs can offer a renewed sense of hope. It can be a deeply emotional decision, but many families who go this route say the joy of having a child far outweighs any initial hesitations.
Read more in What You Should Know About Getting Pregnant with Donor Eggs in Your 40s and 50s
Learn about egg sharing
If you’re considering using donor eggs, you may come across the term egg sharing—a model that’s growing in popularity for its accessibility and sense of mutual benefit.
Egg sharing is when a donor’s eggs are split between two parties: one portion is used for donation, and the other is preserved for the donor’s own future use. This creates a unique opportunity for both the intended parent and the donor to move forward with their reproductive goals, together.
One of the most meaningful aspects of egg sharing is that it often attracts donors who are freezing their eggs for their own future family planning. These donors are typically highly motivated, thoughtful about their decision, and deeply aware of the significance of their gift. Many intended parents feel a strong sense of connection knowing that their donor is on a similar journey.
Egg sharing can also make egg donation more financially accessible. Because the donor receives free egg freezing in exchange for sharing a portion of her eggs, intended parents often pay less compared to traditional egg donation arrangements. This model can lower costs without compromising on quality, screening, or support.
At its core, egg sharing is a way to build families with empathy, intention, and care. It’s a model that recognizes the dreams of both parties and creates space for shared hope.
Looking ahead
While having a baby in your 40s presents unique challenges, many paths can lead to successful parenthood. Modern reproductive medicine offers options that weren't available to previous generations, making family-building possible for many women over 40.
The key is understanding your options, working with qualified medical professionals, and making informed decisions based on your personal circumstances and goals. If we can help you on your journey to having a baby, please reach out!
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Dr. Mare Mbaye
Mare Mbaye, MD is a board certified OBGYN based in New York City, in addition to being a Cofertility Founding Medical Advisor. She has worked in the private practice setting caring for pregnant and non-pregnant people with a variety of medical concerns. Dr. Mbaye also boasts several years of experience as a medical advisor, digital health startup consultant, and content creator. Previously, Dr. Mbaye has served as the Medical Director for Noula Health and advised, consulted, and created original content for other startups including Delfina Care, Mina Health, and Pollie. Today, she is also a Medical Advisor for Frame Fertility. Dr. Mbaye is on a mission to bring empathetic, holistic, and affirming reproductive healthcare to all, with a particular focus on historically marginalized groups. With Cofertility, Dr. Mbaye hopes to bridge accessibility gaps in egg freezing to provide people with more freedom and options when it comes to how they build their families. She loves supporting work in the fertility space that thinks outside the conventional bounds of traditional healthcare in the US.
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Dr. Mare Mbaye