What it is
Advanced maternal age, geriatric pregnancy, AMA on your chart: the labels are older than the reality. About 1 in 5 births in the United States are now to mothers 35 and up. The age 35 cutoff came from a 1970s calculation about amniocentesis risk. What changes with age is gradual, not a cliff. The chance of Down syndrome rises from about 1 in 1,250 at 25 to 1 in 350 at 35 and 1 in 100 at 40. So does the chance of miscarriage and high blood pressure.
What's typical
You will likely be offered genetic screening early, including NIPT, a blood test. Some providers add growth scans and more blood pressure checks. ACOG suggests talking about birth by 39 to 40 weeks for mothers 40 and up. Many mothers over 35 report being treated as fragile.
What's known
ACOG and the Society for Maternal-Fetal Medicine describe age 35 as one risk factor among many, not a diagnosis. A healthy mother at 38 has outcomes close to a healthy mother at 28. Emily Oster's review of the data notes the rises are real but small.
What helps
- Ask your provider which tests or visits are because of age, and what each one would change.
- Ask whether you need a maternal-fetal medicine consult or just standard care. Many do not.
- Find mothers your age. It helps to not be the oldest in the room.
When to call someone
- Nowbleeding, severe headache with vision changes, or the baby moving less.
- Todaya blood pressure reading of 140 over 90 or higher at home, or sudden swelling of the face and hands.
- At your next visitquestions about screening, a specialist, and the timing of birth.
Who helps
Tools: Due Date Calculator
Related
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- Gestational diabetesPregnancy: Your Body
- High blood pressure and preeclampsiaPregnancy: Your Body
- Trying to conceive: how long is normal, when to ask for helpBefore Pregnancy
- Expecting twins or morePregnancy: Your Body
What mothers here say
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Experiences and questions are their authors' own, not reviewed advice. The topic's steward lists the ones that help most in a credited digest once there is one. Unusual experiences stay, with a note.
Sources
- American College of Obstetricians and Gynecologists — Committee opinion on pregnancy at age 35 years or older
- Emily Oster — Expecting Better, chapter on maternal age
- Society for Maternal-Fetal Medicine — Patient information on pregnancy after 35
Sources are named, not yet linked. The steward verifies each one and adds the link.
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