Enter Pregnancy Details
Example Data Table
| Case | Age | Weeks | BMI | Blood Pressure | Risk Notes | Score | Category |
|---|---|---|---|---|---|---|---|
| Example A | 29 | 18 | 24.8 | 118/74 | First pregnancy only | 3% | Lower screening score |
| Example B | 41 | 30 | 36.2 | 146/94 | Multiple pregnancy, headache, swelling | 35% | Urgent review advised |
| Example C | 36 | 26 | 31.0 | 132/84 | Diabetes and prior hypertension history | 30% | Elevated monitoring need |
Formula Used
The calculator uses a weighted additive model. Each entered factor contributes points. The total is normalized to a 0 to 100 screening score.
| Factor group | Example weight |
|---|---|
| Age under 18 or 40+ | 6 points |
| BMI 30 to 34.9 | 5 points |
| BMI 35 or higher | 8 points |
| Blood pressure at or above 140/90 after 20 weeks | 14 points |
| Previous preeclampsia or gestational hypertension | 12 points |
| Chronic hypertension | 12 points |
| Diabetes, kidney disease, or autoimmune disorder | 10 points each |
| Current severe symptoms or bleeding | 6 to 12 points |
Urgent review can also override the percentage score. This happens for very high blood pressure, bleeding, reduced fetal movement after 24 weeks, or symptom clusters suggesting possible hypertensive complications.
How to Use This Calculator
- Enter age, gestational weeks, and current BMI.
- Add blood pressure values if you have a recent reading.
- Tick any history factors that apply to the pregnancy.
- Tick any current warning signs you are experiencing now.
- Press the calculate button to view the score above the form.
- Review the category, urgent reasons, and factor breakdown.
- Download CSV or PDF if you want a discussion record.
- Use the result to support a conversation with a clinician.
Frequently Asked Questions
1. Is this a medical diagnosis?
No. It is a structured screening tool for organizing symptoms and history. It cannot confirm preeclampsia, bleeding causes, diabetes, or any other pregnancy complication.
2. Why does blood pressure matter so much?
Raised blood pressure can signal hypertensive pregnancy complications. The calculator gives it strong weight, especially after 20 weeks, because that pattern deserves timely clinical review.
3. Can I use the score for home decisions?
Use it for awareness and discussion only. Do not delay care because a score seems low, and do not self-treat based on the result.
4. Does a low score mean everything is safe?
No. A lower score only means fewer weighted items were entered. New symptoms, heavy bleeding, or reduced fetal movement still need medical advice.
5. Why are age and BMI included?
Age and BMI can influence monitoring needs in pregnancy. They do not diagnose a problem, but they can add background risk in screening models.
6. What if I do not know my blood pressure?
You can leave those fields blank. The tool still calculates a score from symptoms and history, but the result is less informative without current blood pressure data.
7. When should I seek urgent care?
Seek urgent help for heavy bleeding, severe headache, vision change, severe abdominal pain, fainting, or reduced fetal movement, even before calculating any score.
8. Can I share the result with my clinician?
Yes. The export buttons create a simple CSV or PDF summary. That can help you communicate symptoms, readings, and history more clearly during review.