It’s natural to wonder how age affects fertility. If you’re in your mid-30s or older and thinking about pregnancy, you may have questions about your chances of conceiving. While fertility does change over time, many people can still become pregnant after 35. Understanding how fertility shifts with age can help you feel more informed, prepared, and supported as you plan your next steps.
How does age affect fertility?
Age affects fertility differently in men and women. Fertility varies from person to person, and your genetics, health history, and lifestyle also play an important role. Here’s what typically happens.
Fertility in men
Changes tend to be gradual. Sperm quality and quantity begin to decrease around age 40. However, many men are still able to contribute to pregnancy later in life.
Fertility in women
Fertility usually peaks in the 20s and begins to decline in the early 30s. After 35, the decline becomes more noticeable. Typical monthly chances of conception are:
- At age 30: about a 20% chance each month
- At age 35: about a 15% chance each month
- At age 40: about a 5% chance each month
These numbers can be helpful for context, but everyone’s fertility journey is unique.
What healthy habits support fertility after 35?
There are several steps you can take to support your reproductive health and prepare your body for pregnancy. These habits are beneficial whether you’re just beginning to plan or actively trying to conceive.
- Visit your primary care provider to ensure you are healthy enough to conceive and carry a pregnancy.
- Stay current with routine screenings, preconception labs, and vaccinations.
- Maintain a weight range that supports your overall health.
- Take a prenatal vitamin with folic acid.
- Avoid nicotine and cannabis.
- Limit caffeine to under 200 milligrams per day.
- Limit alcohol if you are trying to conceive.
These habits support your overall health and may improve your chances of becoming pregnant.
Can you increase your chances of getting pregnant after 35?
Tracking your menstrual cycle and timing intercourse during your fertile window can help. The fertile window includes the days leading up to ovulation and the day of ovulation itself.
If you’re trying to conceive through intercourse:
- Aim to have intercourse one to two days before ovulation and on the day of ovulation.
- Many couples choose to have intercourse two to three times per week after a period ends to stay within the fertile window without added stress.
If you are not using intercourse to conceive, options include:
- At-home insemination
- Intrauterine insemination (IUI)
- In vitro fertilization (IVF)
- Using donor sperm
- Egg or embryo donation
Your doctor can help you understand which options might be right for you based on your personal goals and medical history.
When should you seek support if you’re having difficult conceiving?
If you’re over 35 and have been trying to conceive for at least six months, schedule an appointment with your doctor for an evaluation.
Here are recommended timelines:
- Ages 35 to 39: seek evaluation after six months of trying
- Ages 40 to 42: seek evaluation after three months
- Ages 42 to 45 or older: talk with a doctor before trying to conceive to discuss your goals and understand your options
Early evaluation can help identify potential challenges and give you clearer next steps on your path to pregnancy.
Thank you to our partners at Sharp HealthCare and Kindbody.
Disclaimer: This blog provides general health information and is not a substitute for professional medical advice, diagnosis, or treatment. Talk to your health care provider about your individual needs.
