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Miscarriage Risk Calculation:
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Miscarriage risk calculation estimates the probability of pregnancy loss based on gestational age. The risk decreases significantly as pregnancy progresses, with the highest risk occurring in the first trimester.
The calculator uses the formula:
Where:
Explanation: The calculation is based on statistical data showing how miscarriage risk decreases with advancing gestational age, with the most significant drop occurring after the first trimester.
Details: Understanding miscarriage risk helps expectant parents manage anxiety, make informed decisions, and provides reassurance as pregnancy progresses beyond high-risk periods.
Tips: Enter the current gestational week (4-20 weeks). The calculator will display the estimated miscarriage risk, week, and corresponding survival rate percentage.
Q1: Why does miscarriage risk decrease over time?
A: Most miscarriages occur due to chromosomal abnormalities in early development. As pregnancy progresses and development continues normally, the risk decreases significantly.
Q2: What is considered a "safe" week?
A: While no week is 100% safe, risk drops below 5% after 10 weeks and below 1% after 16 weeks. The risk continues to decrease throughout pregnancy.
Q3: Are these percentages accurate for every pregnancy?
A: These are population averages. Individual risk factors like maternal age, medical history, and previous pregnancies can affect actual risk.
Q4: What factors increase miscarriage risk?
A: Advanced maternal age, smoking, alcohol use, certain medical conditions, and previous miscarriages can increase risk above population averages.
Q5: When should I consult a healthcare provider?
A: Always consult with healthcare providers for personalized medical advice. This calculator provides general information only.