Blood Pressure After Birth: Checking at Home

After the birth your blood pressure can stay high or rise again, even if it was fine before. That is why your care team checks it in the first weeks. You can keep a daily record on paper or in the blood pressure program in Sam, where your readings become a doctor report you can take to your check-up as a PDF. Your midwife, GP or health care provider decides what your numbers mean.

This text is about the period after giving birth. It is general information and does not replace your midwife, doctor or obstetrician. It gives no management advice. Your home readings are a tool for the conversation, not a diagnosis.

Why blood pressure still matters after the birth

Your blood pressure does not always fall back to normal on its own. It can rise in the first weeks, even if it was calm before. NHS guidance says blood pressure is monitored after the birth, and the symptoms of pre-eclampsia can appear in the days or weeks after your baby is born.

High blood pressure rarely causes symptoms you can feel. That is why a routine of home checks matters, especially in those first busy weeks with a baby. A record of several days shows your care team a picture that one clinic reading cannot.

Pre-eclampsia can develop after the birth too. Your midwife, GP or obstetrician checks for it and tells you what to watch. Your readings support that conversation.

When to measure, and how to do it well

A simple routine works best. Measure morning and evening, at about the same times, and follow a few basic rules:

• Sit quietly for about five minutes first, with your back supported and both feet flat on the floor.
• Use a validated monitor with a cuff that fits you. NICE says blood pressure devices should be validated.
• Do not talk or move while it measures.
• Take two readings, about one minute apart, and keep both.
• Sit with your arm so the cuff is at heart level.

These steps follow the National Heart, Lung, and Blood Institute and the NHS. The NHS says to take a reading, wait about a minute, then take it again, usually twice a day, once in the morning and once in the evening. Your doctor or midwife tells you for how many days. Your care team sets your final rhythm.

What to write down at each reading

At every reading, keep this: the date, the time, the top and bottom numbers, and your pulse. Add a short note, for example whether you took your medicine, how you slept, or anything unusual. This way, you can later see what was happening around a high value.

Keep the same fields each time, so the record stays easy to read. For more on the usual fields, see blood pressure log: print or app. If you are early in the process and want more on the diagnosis side, High blood pressure diagnosis: what now and living with high blood pressure cover the next weeks.

In Sam's blood pressure program you enter the values with the pulse and a short note, and readings from a monitor that writes to Apple Health can land there too. The doctor report (PDF) brings together the period you choose. You add only what you know yourself.

What a very high reading or symptoms mean

Your home readings are something to show your care team. Some readings should not wait for the scheduled appointment.

The NHS defines severe hypertension in pregnancy as a reading of 160/110 mmHg or higher, and says it needs treatment until the reading is below that. If you get such a value, contact your midwife, GP or maternity unit straight away, without waiting for the next visit.

Worries are not only numbers. The NHS lists these signs of pre-eclampsia: a severe headache that does not go away, vision problems such as blurring or flashing lights, pain below the ribs, sudden swelling of the face, hands or feet, feeling very unwell, or being sick. Guy's and St Thomas' also lists shortness of breath among the symptoms of postnatal high blood pressure. If any of these appears, seek urgent help even if your measured value looks fine.

The NHS says to call your maternity unit or NHS 111 straight away if you have symptoms of pre-eclampsia after giving birth. In the US, call your provider or maternity unit. For sudden or severe symptoms, call your local emergency number (112 in the EU, 999 in the UK, 911 in the US). If you are not sure, call.

Letting your partner or a helper follow along

The first weeks are a lot to hold in your head, and a second pair of eyes helps. What a helper sees is your choice. In Sam, you decide what to share through Friends & Family: read-only, per person, and you can stop it at any time. Your helper needs their own Sam account and sees only the snapshot you share. A family member can also help with the practical side; the Sam for family page shows what that looks like.

The doctor report (PDF) is not shared through Friends & Family. You bring it yourself to the appointment.

Be gentle with yourself and your numbers

Measuring should not become another source of pressure. A high reading after a night with little sleep is first just information, not a reason to panic. Show uncertain values to your care team rather than playing them down. Your home readings prepare the conversation and say nothing about you as a parent. Decisions about treatment and check-up timing stay with your care team.

The pregnancy-side guide covers the months before birth; this post is about what comes after.

Log your readings after birth in Sam and bring the report

You go to the check-up with a readable series instead of trying to recall the last weeks from memory. That helps the conversation and lets you focus on the baby.

• Instead of loose paper beside the changing mat: you enter each reading with date, time, pulse and a short note, morning and evening.
• Instead of memory at the appointment: the doctor report (PDF) from the high blood pressure program brings together the period you choose, to print or show.
• For your helper: through Friends & Family you give one person read-only access, per person and revocable at any time.

Sam does not measure blood pressure; the values come from your own upper arm cuff. What you share is always your choice.

Try Sam for free

Sam is a wellness companion, not a medical device. The app does not diagnose, treat, cure or prevent any condition or health state. Always consult qualified professionals for medical decisions.

Related reading

• Blood pressure in pregnancy: home monitoring
• High blood pressure diagnosis: what now
• Living with high blood pressure: daily readings
• How often to measure blood pressure

Sources

Updated: October 2026

• NHS: High blood pressure (hypertension) and pregnancy (page last reviewed 13 November 2024). Severe hypertension in pregnancy from 160/110 mmHg, blood pressure monitored after birth, check-ups after the birth.
• NHS: Pre-eclampsia (page last reviewed 23 March 2026). Pre-eclampsia can develop in the days or weeks after birth; symptoms, and calling the maternity unit or NHS 111 after giving birth.
• Guy's and St Thomas' NHS Foundation Trust: Postnatal hypertension (last reviewed January 2024). Postnatal hypertension and its symptoms.
• National Heart, Lung, and Blood Institute (NIH): High blood pressure diagnosis (updated 26 June 2025). Preparing for a reading.
• NHS: Blood pressure test (page last reviewed 25 November 2025). Home measurement, two readings one minute apart, morning and evening.