Once you're pregnant at 35 or older, the honest picture is that a few specific risks — gestational diabetes, high blood pressure disorders, chromosomal conditions and a somewhat higher chance of pregnancy loss — rise gradually with age, and your care team responds with closer monitoring, not alarm. This is different from the question of getting pregnant at this age; this is about what changes in your care once you already are.

Why this is a different question from "can I conceive after 35"

What's the best age to get pregnant covers how fertility and the chance of conceiving shift with age. Once you're pregnant, a separate set of questions takes over: what's more likely to come up during the pregnancy itself, and what does your doctor do about it. Being 35+ or 40+ is one of the standard reasons a pregnancy is managed as higher-risk — which, as that guide explains, is a label for extra attention, not a prediction that something will go wrong.

The risks that genuinely rise with age

These are the patterns seen consistently in population data, hedged as such rather than as a personal forecast:

  • Gestational diabetes — becomes somewhat more common with advancing maternal age, which is why the screening test is offered to everyone but watched a little more closely in this group.
  • High blood pressure disorders, including pre-eclampsia — also rise gradually with age, which is why blood pressure and urine checks happen at every visit.
  • Chromosomal conditions in the baby, such as Down syndrome — the chance rises with maternal age, which is why screening options (covered below) are discussed proactively rather than only if something looks unusual.
  • Miscarriage and pregnancy loss — the chance is somewhat higher, largely for the same egg-quality reasons that affect conceiving in the first place.
  • A higher likelihood of needing a C-section — often related to the other factors above rather than age acting alone.

None of these mean a complication will happen — most pregnancies at 35+, and many at 40+, proceed without any of the above. They're the reasons the monitoring plan below exists.

Being 35 or 40 doesn't determine your pregnancy's outcome — it determines how closely your care team watches for the things that are somewhat more likely.

What extra monitoring actually looks like

  • Earlier and more detailed screening discussions — chromosomal screening options (blood-based screening, or diagnostic testing like PGT if the pregnancy came from IVF and testing was done before transfer) are typically raised proactively rather than left for you to ask about.
  • A glucose tolerance test, sometimes earlier in the pregnancy in addition to the routine mid-pregnancy screen, depending on your other risk factors.
  • More frequent blood pressure and urine checks, watching specifically for the early signs of pre-eclampsia.
  • Additional growth scans in the third trimester, since growth is one of the things monitored more closely across several of the risk categories above.
  • A more deliberate delivery-timing conversation as you approach term, factoring in how the pregnancy has progressed rather than a single fixed rule based on age alone.

What doesn't automatically change

  • Your mode of delivery isn't decided by age alone — see how doctors actually decide between normal delivery and a C-section; age is one input among several, not a rule that mandates one outcome.
  • A healthy 35- or 40-year-old with no other risk factors often has a pregnancy that looks, week to week, much like a younger patient's — with a closer-set monitoring calendar layered on top.
  • Age itself isn't treated — there's no intervention that changes the age-related risks directly; the extra scans and tests exist so that anything that does develop is caught early, when it's most manageable.

Frequently asked

Does being 35+ automatically mean I'll need a C-section?

No. Age is one factor your doctor considers, not a rule that decides the outcome on its own. Many women 35 and older deliver vaginally; the decision is made closer to term based on how the pregnancy and labour are actually progressing.

Is 40 a completely different risk picture from 35?

It's a continuation of the same gradual curve rather than a separate category — the risks discussed above continue rising through the late 30s and 40s, which is why monitoring for a 40-year-old tends to be at least as attentive as for a 35-year-old, often more so, but the same general approach applies.

Can anything lower these risks once I'm already pregnant?

General pregnancy health measures — attending every scheduled visit, managing blood pressure and blood sugar as advised, and reporting new symptoms promptly — matter for everyone and are especially useful here, since they're what let your care team catch and manage these specific risks early. Nothing reverses the age-related increase itself, but early detection changes what happens next.

Should I ask for a maternal-fetal medicine specialist?

Only if your doctor recommends it based on your specific situation. Age alone doesn't automatically require a specialist referral — many pregnancies at 35+ and 40+ are managed entirely by an experienced obstetrician, with a specialist looped in only if a specific finding warrants it.