Antenatal appointments are short, spaced weeks apart, and arrive with no agenda attached. You get a time and a place. What actually happens once you are in the room, and what you are supposed to do with the time, is left for you to work out on the day.
Every one of them has a purpose, and the purposes change as the pregnancy goes on. This guide walks the schedule from booking to 41 weeks: what is checked at each visit, what is discussed, which results lead to another appointment, and what to ask while you are there.
The short answer: a first pregnancy in the UK gets at least 10 antenatal appointments, at roughly 8–12, 16, 25, 28, 31, 34, 36, 38, 40 and 41 weeks, plus scans at 11–14 and 18–21 weeks. A second or later pregnancy gets at least 7, dropping the 25 and 31 week visits. The WHO's international minimum is eight contacts. Every appointment includes blood pressure and a urine test — the latter screens for a urinary tract infection, which is treated in pregnancy even without symptoms; from 24 weeks it also includes measuring your bump.
The pattern underneath the schedule
Appointments are not spread evenly, and the spacing tells you what each part of the pregnancy is being watched for. The first trimester is front-loaded with screening that has hard deadlines. The second trimester is quiet — one appointment at 16 weeks, one scan, then a gap. The third trimester is dense, because that is when pre-eclampsia and growth problems appear.
📅 How the spacing changes
- Up to 28 weeks — roughly every four weeks. Screening deadlines drive the timing more than monitoring does.
- 28 to 36 weeks — every two weeks. Blood pressure and growth are now the point of the visit.
- 36 weeks onwards — weekly. Position, growth and the plan for labour.
8–12 weeks: the booking appointment
The longest appointment you will have, usually around an hour. It sets up everything that follows, which is why it is worth arriving with your dates and your medical history clear in your head.
What happens: height, weight and BMI; blood pressure; a urine sample; the first round of blood tests; your medical, obstetric and family history; questions about mental health, domestic circumstances, smoking, alcohol and medication. You are given your maternity notes, and every screening test is explained so you can decide which to accept.
What to ask: which screening tests have deadlines, when the results come back, who to ring out of hours, and whether any of your regular medicines need reviewing. If you take anything at all — including supplements — bring the boxes rather than the names.
Go early rather than on time. Sickle cell and thalassaemia screening works best before 10 weeks, and the combined screening test cannot be done after 14 weeks at all. A booking appointment at 11 weeks leaves very little room if anything needs rescheduling.
11–14 weeks: the first scan
This scan dates the pregnancy more accurately than your last period can, counts how many babies there are, checks the heartbeat and looks at where the placenta has implanted. Combined with a blood sample it becomes the first trimester screening test.
What to ask: what your revised due date is and whether it has changed, and — if you accepted screening — when and how you will get the result. Ask what happens if the result is "higher chance", before you are in that situation rather than after.
16 weeks: results and iron
A short appointment. Blood pressure, urine, and the results of the booking bloods. If you are anaemic this is usually where iron is started; if your blood group is RhD negative, this is where anti-D later in pregnancy is explained.
What to ask: for your actual haemoglobin and ferritin numbers rather than "your bloods were fine". They are the baseline every later result is compared against, and knowing them makes the 28-week repeat meaningful.
18–21 weeks: the anomaly scan
The detailed anatomical examination — brain, heart, spine, kidneys, limbs, abdominal wall — plus the position of the placenta. It takes longer than the first scan and the sonographer will go quiet while working, which is normal.
What to ask: where the placenta is lying, and whether it needs rechecking later. A low-lying placenta at 20 weeks usually moves up as the uterus grows, but it is the one finding from this scan that reliably generates another appointment.
24 weeks: measuring starts
From this visit onwards your bump is measured with a tape from the pubic bone to the top of the uterus, and the number is plotted on a chart rather than judged on its own. One measurement means little; the shape of the curve over three or four visits is the actual test.
You will also be asked about the baby's movements at every appointment from now on. Our guide to kick counts and baby movements explains what to notice between visits, and why "the baby has a quiet day sometimes" is not a reason to wait.
28 weeks: the appointment that changes gear
The busiest visit after booking, and the point where the schedule tightens to fortnightly.
What happens: a second full blood count, because anaemia commonly develops in the second half of pregnancy; an antibody screen; anti-D immunoglobulin if you are RhD negative; and, if you have a risk factor, the results of the glucose tolerance test done between 24 and 28 weeks.
What to ask: whether your haemoglobin has dropped since booking and whether that needs treating, and — if you are RhD negative — when the second anti-D dose is due, since that depends on which regimen your unit uses.
31 and 34 weeks
The 31-week appointment is offered to first-time mothers only. Both visits cover blood pressure, urine and fundal height, and 34 weeks is usually where labour itself gets discussed: pain relief, where you plan to give birth, and what you want to happen in the first hour afterwards.
That conversation goes better when you have thought about it beforehand rather than in the room. Our birth plan template covers the decisions worth making in advance, and the hospital bag checklist is the other thing that is easier at 34 weeks than at 39.
36 weeks: which way up
The baby's position is felt through your abdomen. Around this point most babies are head down; if yours is breech, a scan confirms it and you will be offered a conversation about turning the baby manually, planning a caesarean, or a vaginal breech birth depending on your unit.
What to ask: if the baby is breech, how long you have before a decision is needed. There is usually more time than the appointment implies, and knowing that removes the pressure to decide on the spot.
38, 40 and 41 weeks
The usual checks, more often. At 40 weeks the conversation turns to what happens if the pregnancy continues; at 41 weeks a membrane sweep is usually offered and induction is discussed and booked.
By this point you will recognise the signs the appointments are looking for. Our guide to the signs of labour covers what to watch for between them, and the contraction timer applies the 5-1-1 rule when they start.
What to bring, every time
- Your maternity notes or app — the record is the point; a visit with no history to compare against is worth much less.
- A urine sample, if your clinic asks for one to be brought.
- Any readings you have taken at home — blood pressure especially. A series over weeks tells a midwife something a single reading cannot.
- Your current medicines and supplements, or a photo of them.
- Your questions, written down. This is the one that consistently changes what gets covered.
When to call between appointments
Call your midwife or maternity unit the same day if: your baby's movements have slowed or changed after 24 weeks, you have any vaginal bleeding, a gush or trickle of fluid, severe or one-sided abdominal pain, a severe headache with visual disturbance, sudden swelling of the face and hands, or a fever. None of these should wait for the next scheduled visit.
The gaps in this schedule assume you will ring. Four weeks between appointments in the second trimester is a long time for something to change, and the system is built on the expectation that you contact it rather than wait. Maternity triage lines are staffed around the clock for exactly this.
Frequently Asked Questions
How many antenatal appointments will I have?
The NHS offers at least 10 for a first baby and at least 7 if you have given birth before. The WHO recommends a minimum of eight contacts worldwide. The traditional US schedule runs to 12–14 visits, though ACOG's 2025 clinical consensus replaced the fixed schedule with one matched to each pregnancy. Any of these can grow if a complication needs monitoring.
When is the first antenatal appointment?
The booking appointment is usually between 8 and 12 weeks, and earlier is better — several of the screening tests have deadlines. It is the longest appointment of the pregnancy, around an hour, because it covers your full medical history, baseline measurements, the first round of blood tests and an explanation of every screening test you will be offered.
What happens at a 16-week appointment?
Blood pressure, a urine test, and the conversation about your booking blood results and any first-trimester screening. If your booking bloods showed anaemia you may be started on iron here. There is no scan at 16 weeks in a routine pregnancy; the next one is the anomaly scan between 18 and 21 weeks.
Why do appointments get more frequent at the end?
Because the complications of late pregnancy — pre-eclampsia, growth restriction, changes in the baby's position — develop over days rather than months, and most give little warning. Fortnightly checks from 28 weeks and weekly from 36 exist so that a rising blood pressure or a flattening growth curve is caught while there is still time to act on it.
Can I bring my partner to antenatal appointments?
Almost always, though hospitals set their own limits on numbers and on whether children can come. It is worth having someone at the appointments where a lot is discussed at once — booking, the anomaly scan, and the 34-week birth conversation — simply because two people remember more than one.
What if I miss an antenatal appointment?
Ring and rebook, and say which one you missed. Most appointments can be moved by a week or two without consequence, but a few are time-limited: the combined screening test has to happen between 11 and 14 weeks and cannot be done later, and the anomaly scan window closes at 21 weeks. Missing one of those changes which options remain, so those are the calls to make promptly.
Do I need to see a doctor as well as a midwife?
Not in an uncomplicated pregnancy in a midwife-led system — most of the routine schedule is midwife care, with an obstetrician involved only if something needs it. In many other countries an obstetrician leads antenatal care throughout. Neither model is the safer one for a low-risk pregnancy; what matters is that someone is seeing the same numbers over time.
What is a membrane sweep and when is it offered?
A sweep is done during a vaginal examination, usually offered from 41 weeks: a finger is moved around the cervix to separate the membranes from the uterine wall, which releases prostaglandins and can start labour. It is uncomfortable rather than painful, can cause some spotting and irregular contractions afterwards, and can be declined without affecting anything else that is offered.
The antenatal schedule — at a glance
A first pregnancy involves at least ten appointments and two scans, a second at least seven. The booking appointment between 8 and 12 weeks is the longest and sets everything up. Screening with hard deadlines fills the first trimester, the second is quiet apart from the anomaly scan, and the third is dense because that is when pre-eclampsia and growth problems appear. Appointments run monthly to 28 weeks, fortnightly to 36 and weekly after that. Blood pressure and urine are checked every time, fundal height from 24 weeks, and the baby's position from around 36. What you get out of each visit depends mostly on whether you arrived with your questions written down and your own numbers in hand.
Inside Baby Novum: the pregnancy calendar marks ultrasounds, doctor's appointments, lab tests and personal events on a month grid with week boundaries shown, and sends a push reminder before each. Blood pressure, weight, belly measurements and lab results each keep a dated history with a chart, so the series you bring to an appointment is the series rather than a recollection.