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Prenatal care: the visit schedule and what each one is for

Obstetrics

Fewer than a dozen visits, each with a purpose: dating, screening, surveillance, preparation. The schedule is the scaffolding of the longitudinal cases.

The first visit

Fundal height by trimester: the pelvis at 12 weeks, the umbilicus at 20, the xiphisternum near term.

The longest visit, ideally before 10 weeks. It establishes the date, the risks and the plan.

  • History: menstrual dates and certainty, obstetric history (each pregnancy, its outcome and complications), medical and surgical history, medications and supplements, family history (genetic, diabetes, hypertension, VTE), social history including intimate partner violence and substance use, mental health.
  • Examination: blood pressure, weight and BMI, fundal height if the uterus is palpable, and a pelvic examination only if indicated (cervical screening due, symptoms).
  • Dating: the last menstrual period if certain and cycles regular, otherwise the earliest ultrasound. A first-trimester scan that differs by more than 5 to 7 days from the dates re-dates the pregnancy, and the date is then fixed.
  • Bloods and tests: the initial panel is listed on the Pregnancy page's testing view.
  • Counselling: folic acid, nutrition, food safety (listeria), exercise, travel, work, the screening choices ahead, when to call.

The testing schedule, visit by visit

The schedule

WeeksVisitFocus
8 to 10First visitHistory, dating, initial bloods, counselling
11 to 14ScreeningNuchal translucency and serum screen, or cell-free DNA from 10 weeks
16 to 20Second visitQuad screen if needed, anatomy scan booked, movement counselling
18 to 22Anatomy scanStructural survey, placenta, cervix
24 to 28GlucoseGestational diabetes screen, repeat CBC and antibodies, anti-D at 28 if Rh negative
28 to 36Every 2 to 3 weeksBlood pressure, urine, fundal height, movements, position from 34
36GBS and positionGBS swab, presentation, birth plan, labour signs
37 to 41WeeklySame checks; discuss induction at 41

A typical low-risk schedule; high-risk pregnancies are seen more often.

Common complaints and what to say

ComplaintReassure whenLook further when
Nausea and vomitingFirst trimester, keeping fluids down, weight stableKetones, weight loss over 5 percent, cannot keep fluids down: hyperemesis
RefluxResponds to antacids and positionEpigastric pain with hypertension: preeclampsia
Pelvic girdle painMechanical, positionalFever, urinary symptoms, contractions
Leg swellingBilateral, dependent, end of dayUnilateral, calf tenderness: DVT. Face and hands with high BP: preeclampsia
HeadacheTension-type, responds to paracetamolNew, severe, with visual change or BP rise after 20 weeks
Reduced movementsNever simply reassured over the phoneEvery episode is assessed the same day

Check

A patient at 9 weeks has a certain last menstrual period giving 9+3 weeks, regular cycles, and a scan today with a crown-rump length of 8+6 weeks. What is the due date based on?

Watch it done

Pregnant abdomen examination (OSCE guide)Geeky Medics on YouTube

Inspection, fundal height, lie, presentation, engagement and the fetal heart, in the order a clinician examines.

Leopold's manoeuvresUBC CPD on YouTube

The four manoeuvres, filmed as a fetal health surveillance fundamental.

Frameworks and sources

  • NICE: Antenatal care (NG201) and intrapartum care (NG235) (2023).
  • WHO: Recommendations on antenatal care for a positive pregnancy experience; intrapartum care for a positive childbirth experience (2018).
  • Diabetes Canada: Clinical practice guidelines: diabetes and pregnancy (2018). Screening approach and thresholds follow the Canadian preferred (two-step) pathway; the alternative one-step pathway and the IADPSG thresholds are named, not merged.

Content reviewed 2026-09. Teaching material for students, not clinical decision support; check the current edition of the guideline your unit uses.