Most couples conceive within a year, but it rarely happens in the first month. Here’s what’s normal at each age, how to improve your chances, and when to see a doctor.
For most healthy couples, getting pregnant takes a few months. Even with perfect timing, the chance of conceiving in any one cycle is only about 1 in 5 for a healthy woman around 30. That’s why about 8 in 10 couples conceive within a year, and most of the rest within two. Age matters most: the chance each month falls steadily after 35, and more sharply after 40. If you’re under 35 and haven’t conceived after a year of trying, or 35 or older after six months, it’s time to see a doctor.
What’s normal at each age
| Your age | Chance of pregnancy each cycle | When to see a doctor if not pregnant |
|---|---|---|
| Under 35 | About 1 in 4 to 1 in 5 | After 12 months of trying |
| 35 to 39 | Gradually lower | After 6 months of trying |
| 40 and over | About 1 in 20 by age 40 | Right away, or after 3 months |
These are averages. Many women conceive faster, and some take longer and still have healthy pregnancies. If you’re over 35, see our guide to getting pregnant at 35.
Why it takes time
Each cycle, an egg can be fertilized for only about 24 hours, and sperm survive up to five days. So pregnancy is only possible in a window of about six days each month: the five days before ovulation and the day of ovulation. Even in that window, not every egg is healthy enough, and not every fertilized egg implants. Taking a few months is normal biology, not a sign that something is wrong. Our guide to how to know if you’re ovulating shows how to find your fertile days.
How to improve your chances
- Know your fertile window. Track ovulation with an ovulation test kit, cervical mucus, or temperature charting.
- Have sex every one to two days during the fertile window, or every two to three days through the month if tracking is stressful.
- Take folic acid, 400 micrograms a day, starting before you conceive.
- Aim for a healthy weight. Being very underweight or overweight can affect ovulation.
- Stop smoking, and limit alcohol and caffeine.
- Remember both partners. About a third to half of fertility problems involve the male partner, so his health matters too.
- Manage existing conditions, such as thyroid problems, diabetes or PCOS.
For a fuller plan, see our trying to conceive guide.
After stopping birth control
For most methods, including the pill, IUD and implant, fertility returns within a month or two. After the Depo-Provera shot, it can take 10 months or more. If your periods haven’t returned three months after stopping, see our guide to no period after stopping birth control.
When to see a doctor sooner
Don’t wait the full 6 or 12 months if you have:
- irregular periods, or no periods
- very painful periods, or known endometriosis
- a history of pelvic infection or surgery
- PCOS (see how to get pregnant with PCOS), or thyroid problems
- a partner with known fertility concerns
- two or more miscarriages
If your tests all come back normal, read about unexplained infertility. If you’ve been pregnant before, see secondary infertility, and if you’ve had a low egg-reserve result, see low AMH.
The Chinese medicine view
Chinese medicine sees fertility as resting on Kidney essence, the body’s reproductive foundation, and on a smooth, regular monthly cycle. It traditionally emphasizes preparing the body over several months before conception: rest, warmth, nourishing food and a steady routine. These are traditional descriptions, not a diagnosis.
Another option while you prepare
Not every woman wants another prescription while she’s trying. Fertility Nourish is a sealed herbal pouch worn over the navel, with nothing to swallow, offered as a preconception wellness routine alongside your medical care. In one selected case from my practice records, a woman who had tried to conceive for six years reported a pregnancy within a month of a combined pouch routine. Read her case, which can’t show what caused the pregnancy or predict your result. Stop using the pouch once pregnancy is possible or confirmed. Your first course is covered by our 90-Day Satisfaction Guarantee.
See Fertility Nourish’s directions →
Reviewed October 2026. Author: Qingcai Wang, MD, PhD, developer of the Five Essences external herbal-pouch formulations, with a commercial interest in their sale. General education only; continue your medical care.
Sources: ACOG: evaluating infertility; ASRM, age and fertility; NHS: how to get pregnant.