Enter pregnancy blood pressure details
Example data table
| Visit | Weeks | BP | MAP | Proteinuria | Symptoms | Suggested action |
|---|---|---|---|---|---|---|
| Early baseline | 12 | 112/72 | 85.3 | No | None | Routine tracking |
| Follow-up | 24 | 128/82 | 97.3 | No | Mild swelling | Watch trend |
| Same-day repeat | 31 | 144/94 | 110.7 | No | Headache | Prompt review |
| Urgent review | 35 | 162/112 | 128.7 | Yes | Vision changes | Immediate evaluation |
Formula used
Mean arterial pressure: MAP = (Systolic + 2 × Diastolic) ÷ 3
Pulse pressure: Pulse Pressure = Systolic − Diastolic
Shock index: Shock Index = Heart Rate ÷ Systolic
Baseline change: Current reading − Baseline reading
The calculator combines these values with pregnancy thresholds, symptoms, proteinuria, repeat confirmation, and gestational age to create a practical home-monitoring summary.
How to use this calculator
- Sit quietly for at least five minutes before measuring.
- Use the correct cuff size on a bare upper arm.
- Enter systolic and diastolic values exactly as shown on your monitor.
- Add gestational week, baseline pressures, and any symptom flags.
- Press calculate to show the summary above the form.
- Download a CSV or PDF copy for prenatal visits.
Interpretation guide
Usually below the hypertension threshold, but trends and symptoms still matter.
Needs clinician review, especially after 20 weeks or when confirmed on repeat reading.
Severe-range pressure in pregnancy needs urgent medical assessment.
Frequently asked questions
1. What blood pressure is high during pregnancy?
A reading of 140/90 mmHg or higher meets the pregnancy hypertension threshold. A reading of 160/110 mmHg or higher is severe and needs urgent assessment.
2. Can one high reading diagnose preeclampsia?
No. Diagnosis needs clinical evaluation. Blood pressure, symptoms, urine protein, blood tests, and fetal assessment may all be reviewed together.
3. Why does the calculator ask for gestational age?
High blood pressure starting after 20 weeks can raise concern for gestational hypertension or preeclampsia, especially when symptoms or proteinuria are present.
4. What is mean arterial pressure?
Mean arterial pressure estimates average pressure across the heartbeat cycle. It helps highlight trend changes, even when a single reading is not yet severe.
5. Should I repeat a high home reading?
Yes, if you feel safe. Rest quietly and recheck after 10 to 15 minutes. Severe readings or severe symptoms still need urgent medical advice.
6. What symptoms need urgent attention?
Seek urgent care for severe headache, vision changes, chest pain, shortness of breath, seizure, or reduced fetal movement, even if the reading is lower.
7. Can this replace prenatal care?
No. It is a home-tracking aid only. Pregnancy hypertension needs professional interpretation, follow-up, and sometimes urgent treatment.
8. Why export to CSV or PDF?
Exporting lets you keep a clear log for clinic visits, compare trends, and share readings, symptoms, and context with your maternity team.