Pregnancy Blood Pressure Monitor Guide (2026)
By the BP Monitor Lab editorial team · Written from manufacturer documentation and published guidance, not from our own device testing · Updated: October 9, 2026 · Sources last checked: October 5, 2026
Your care team may ask you to check your blood pressure at home while you are pregnant. This page gives you three things: the pregnancy categories the American Heart Association publishes, the symptoms it says mean call 911, and what to ask before you trust a monitor. It does not tell you what to do with a reading. Your obstetric team does that.
We cannot name a monitor validated for pregnancy
No monitor in our catalogue has a pregnancy validation we can cite. So this page names no pick and carries no buy button. Ask your midwife or obstetric team which monitor they want you to use.
When Your Care Team Asks You to Check at Home
The American Heart Association says that during or after pregnancy you can develop high blood pressure, including a dangerous condition called preeclampsia. It says checking blood pressure before, during and after pregnancy helps you and your health care team stay on top of your health. Whether you should check at home, and how often, is for your own team to decide.
Pregnancy Blood Pressure Categories
These are the categories in the American Heart Association's summary of the AHA/ACC high blood pressure guideline. They are different from the categories for adults who are not pregnant.
| Category | Top number | And or | Bottom number |
|---|---|---|---|
| Non-hypertensive | Less than 140 | and | Less than 90 |
| Hypertension in pregnancy | 140 or higher | or | 90 or higher |
| Severe hypertension | 160 or higher | or | 110 or higher |
For a reading in the severe range with no symptoms, the AHA says to call your health care professional immediately. Your obstetric team may give you different numbers to act on. If they have, use theirs.
Symptoms the AHA Says Mean Call 911
The AHA lists these beside its pregnancy categories. If you have any of them, it says to call 911.
- Severe headache
- Change in vision
- Abdominal pain
- Chest pain
- Significant swelling
- Shortness of breath
This is the AHA's list and nothing more. Your own team may have told you about other signs. Follow what they told you.
Choosing a Monitor for Pregnancy
The AHA says that when you choose a monitor for a person who is pregnant, you should make sure it is validated for them. Its 2019 statement on measuring blood pressure explains why. Many monitors validated in men and in women who are not pregnant have not been validated in pregnant women.
- Ask your team first. They may lend you a monitor, or name the one they want you to buy.
- Check the US validated device listing. validatebp.org shows which monitors were tested in pregnancy. Ask your doctor or midwife which one to use.
- Read the manual. Omron's manual for the Platinum BP5465 says it has not been validated for pregnant patients. That kind of line is what to look for.
- Use an upper arm cuff that fits. The AHA recommends an upper arm cuff and says to measure around your upper arm to get the right size. Our cuff sizing guide shows how.
How to Take the Reading
Do it the way your team showed you. If they did not say, this is the American Heart Association's method for home readings.
- Do not smoke, drink caffeine or exercise in the 30 minutes before. Empty your bladder.
- Rest quietly for at least five minutes. Do not talk or use the phone.
- Sit with your back supported and your arm on a table at heart level.
- Put the cuff on bare skin, just above the bend of the elbow.
- Take two readings, one minute apart. Write both down.
Our technique guide covers each step. How many readings to take, and on which days, is for your obstetric team to set.
Where this comes from
Guideline and evidence last checked: 2026-10-05. We publish what these sources say. Where they decline to give a rule, we say that instead of inventing one.
- •Top 10 Things to Know About the AHA/ACC High Blood Pressure Guideline, American Heart Association, 2025-08-14
- •Measurement of Blood Pressure in Humans: A Scientific Statement From the American Heart Association (2019), American Heart Association, 2019-03-04
- •Home Blood Pressure Monitoring, American Heart Association
Fact-check history
What we have corrected on this page, and when. We publish the mistakes as well as the fixes.
- 2026-10-09: Replaced the advice to search validatebp.org by model number with a pointer to the US validated device listing, which shows which monitors were tested in pregnancy, and a line to ask your doctor or midwife which one to use. The page still names no monitor.
- 2026-10-05: Rebuilt from two American Heart Association documents. Removed the pick box that named the Omron Platinum BP5465 the best monitor for pregnancy, and a card that called the Withings BPM Connect validated in pregnancy. The Omron manual says the BP5465 has not been validated for pregnant patients, and we hold no pregnancy validation for any model.
- 2026-10-05: Replaced an action table we could not source with the pregnancy categories the AHA publishes. Removed a call rule at 140 over 90, an instruction to go to the ER at 160 over 110, a list of who ACOG supports home checks for, a three-reading method, a list of preeclampsia signs and a rule about checking after the birth.
- 2026-10-04: Removed an unsourced figure for how much a full bladder adds to a reading.
- 2026-08-31: Removed a claim that the Omron Platinum BP5465 has published validation in pregnant adults. Omron states in its own manual that the BP5465 has not been validated for pregnant patients. The claim appeared in the FAQ and again on a pick card.
- 2026-08-31: Removed a pregnancy-specific reading count and a same-day call rule, and deferred both to the reader's obstetric team.
Related Reading
Frequently Asked Questions
When does home blood pressure monitoring help in pregnancy?
When your care team asks for it. The American Heart Association says checking blood pressure before, during and after pregnancy helps you and your health care team stay on top of your health. Whether to check at home, and how often, is for your own team to say.
What blood pressure reading is too high in pregnancy?
The American Heart Association publishes categories for pregnancy. Hypertension in pregnancy is a top number of 140 or higher, or a bottom number of 90 or higher. Severe hypertension is 160 or higher, or 110 or higher. For a severe reading with no symptoms, the AHA says to call your health care professional immediately. With a severe headache, a change in vision, abdominal pain, chest pain, significant swelling or shortness of breath, it says to call 911. Your obstetric team may give you different numbers. Use theirs.
Which home BP monitors are validated for pregnancy?
We cannot name one from our own catalogue, and we are not going to guess. Validation in general adults does not transfer to pregnancy, and Omron states in the BP5465 manual that it has not been validated for pregnant patients. The AHA says that when choosing a monitor for a person who is pregnant, you should make sure it is validated for them. Search validatebp.org by exact model number for its pregnancy status, and ask your midwife or obstetric team which monitor they want you to use.
How many readings should I take in pregnancy?
Follow what your obstetric team asks for, because in pregnancy they are managing something more specific than general home monitoring. The AHA home protocol is two readings one minute apart, at the same time each day, with both written down. We are not going to publish a pregnancy-specific count or schedule, because we could not source one that applies to everyone.
Are wrist BP monitors okay during pregnancy?
The American Heart Association recommends an automatic upper arm cuff for home use. It does not recommend wrist monitors, because they give less reliable readings. Ask your care team if an upper arm cuff does not fit you.
How should I get ready for a reading?
The American Heart Association says to rest quietly for five minutes first. Do not smoke, drink caffeine or exercise in the 30 minutes before. Empty your bladder. Sit with your back supported and your arm on a table at heart level, with the cuff on bare skin.
What are signs of preeclampsia besides high BP?
Diagnosing preeclampsia is your care team's job, so we do not publish a list of its signs. The American Heart Association calls it a dangerous condition that can develop during or after pregnancy. It lists these symptoms as a reason to call 911 when blood pressure is in the severe range: severe headache, change in vision, abdominal pain, chest pain, significant swelling or shortness of breath.
Do I keep checking after the birth?
Ask your care team. The American Heart Association says high blood pressure can develop during or after pregnancy, and that checking before, during and after pregnancy helps you and your team. How long to keep checking is for them to say.