Pregnancy

Step 1: Parse User Input

Operation Type Recognition

Date Recognition

Gestational Age Recognition

Checkup Type Recognition

Result Recognition

Symptom Type Recognition

Severity Recognition

Blood Pressure Format Recognition

Step 2: Check Information Completeness

start Operation Required:

• lmp_date: Last menstrual period date

start Operation Validation:

• LMP cannot be future date
• LMP should be within past 10 months
• If active pregnancy exists, prompt to complete first

checkup Operation Required:

• week: Gestational age
• check_type: Checkup type
• results: Results

weight Operation Recommended:

• Weight value (number + unit)
• If no pre-pregnancy weight, prompt to set

vital Operation Required:

• Blood pressure value or vital sign type

Step 3: Interactive Prompts (If Needed)

Scenario A: Missing LMP Date

Please provide your last menstrual period date:
(Format: YYYY-MM-DD)

Scenario B: Active Pregnancy Exists

Active pregnancy record exists

Current pregnancy: LMP 2025-01-01, Due date 2025-10-08
Tip: Please complete current pregnancy before starting new record

Scenario C: Missing Pre-Pregnancy Weight

Pre-pregnancy weight missing

Please set pre-pregnancy weight first:
/profile weight 60

Or:
/pregnancy weight 62.5 --pre-pregnancy 60

Scenario D: Abnormal Checkup Results

Abnormal checkup results

Checkup item: Triple test (16 weeks)
Result: High risk (T21 risk 1:50)

Recommendations:
• Consult obstetrician immediately
• Consider NIPT or amniocentesis
• Do not panic, high risk does not equal diagnosis

Step 4: Generate JSON

Pregnancy Data Structure

{
  "pregnancy_id": "pregnancy_20250101",
  "lmp_date": "2025-01-01",
  "due_date": "2025-10-08",
  "due_date_confidence": "medium",
  "corrected_by_ultrasound": false,

  "current_week": 0,
  "current_day": 0,
  "current_trimester": "first",
  "days_passed": 0,
  "days_remaining": 280,
  "progress_percentage": 0,

  "multi_pregnancy": {
    "pregnancy_type": "singleton",
    "fetal_count": 1,
    "fetal_profiles": [
      {
        "baby_id": "A",
        "estimated_weight": null,
        "position": null,
        "heart_rate": null,
        "amniotic_fluid_index": null,
        "growth_percentile": null
      }
    ]
  },

  "prenatal_checks": [
    {
      "check_id": "check_001",
      "week": 12,
      "check_type": "NT scan",
      "scheduled_date": "2025-03-25",
      "completed": false,
      "results": {},
      "preparation": "Full bladder required"
    }
  ],

  "symptoms": {
    "nausea": {"present": false, "severity": null},
    "fatigue": {"present": false, "severity": null},
    "edema": {"present": false, "severity": null}
  },

  "weight_tracking": [],
  "blood_pressure": [],
  "fetal_movement": {"tracking_started": false},

  "nutrition_plan": {
    "folic_acid": {"dose": "400μg", "frequency": "daily"},
    "iron": {"dose": null},
    "calcium": {"dose": null},
    "dha": {"dose": null}
  },

  "notes": "",
  "completed": false,
  "delivery_date": null,
  "delivery_outcome": null,

  "metadata": {
    "created_at": "2025-01-01T00:00:00.000Z",
    "last_updated": "2025-01-01T00:00:00.000Z"
  }
}

Complete schema definition: see schema.json.

Step 5: Save Data

1. Read data/pregnancy-tracker.json
2. Update corresponding data
3. Write back to file
4. If detailed records exist, save to data/pregnancy-records/YYYY-MM/YYYY-MM-DD_pregnancy-record.json

Execution Instructions

1. Parse user input and determine operation type
2. Execute corresponding logic based on operation type
3. Validate input data and state
4. Generate JSON compliant with schema.json
5. Save to data/pregnancy-tracker.json
6. Output operation result and summary to user

Example Interactions

Example 1: Start Pregnancy Record

User: /pregnancy start 2025-01-01

System:
Pregnancy record created

Pregnancy Information:
LMP: January 1, 2025
Due Date: October 8, 2025
Current gestational age: 0 weeks
Trimester: First trimester

Due date confidence: Medium (calculated from LMP)

Next Checkup:
12-week NT scan - March 25, 2025 (84 days away)
Preparation: Full bladder required

Checkup Schedule Overview:
12 weeks: NT scan
16 weeks: Triple test/NIPT
20 weeks: Anomaly scan
24 weeks: Glucose tolerance test
28 weeks: Routine checkup
32-36 weeks: Every 2 weeks
37-40 weeks: Weekly

Nutrition Recommendations:
• Folic acid: 400-800μg/day
• Iron: Supplement in 2nd/3rd trimester
• Calcium: 1000-1200mg/day
• DHA: 200-300mg/day

Data saved to: data/pregnancy-records/2025-01/2025-01-01_pregnancy-record.json

Example 2: Log Checkup

User: /pregnancy checkup week 12 NT normal

System:
Checkup record updated

Checkup Information:
Gestational age: 12 weeks
Checkup item: NT scan
Date: March 25, 2025
Result: Normal (NT value 1.8mm)

This checkup completed

Next Checkup:
16-week Triple test - April 22, 2025 (28 days away)
Preparation: Fasting blood draw

Example 3: Log Weight

User: /pregnancy weight 62.5

System:
Weight recorded

Weight Information:
Record date: March 20, 2025
Current gestational age: 12 weeks

Current weight: 62.5 kg
Pre-pregnancy weight: 60.0 kg
Weight gained: 2.5 kg
Current BMI: 23.1 (normal)

Weight Gain Assessment:
Recommended pregnancy weight gain: 11.5-16 kg
Current progress: Normal

Late pregnancy recommendations:
Weekly weight gain: 0.35-0.50 kg

Example 4: Set Twins

User: /pregnancy type twins

System:
Multiple pregnancy type set

Pregnancy Type Information:
Type: Twin pregnancy
Fetal count: 2

Due Date Adjustment:
Original due date: October 8, 2025 (40 weeks)
Adjusted due date: September 17, 2025 (37 weeks)
Earlier by: 3 weeks

Checkup Frequency Adjustment:
• From 28 weeks: Every 2 weeks
• From 32 weeks: Weekly
• Add cervical length monitoring
• Add fetal growth monitoring

Weight Gain Recommendations:
Total recommended gain: 16-24 kg
Late pregnancy weekly gain: 0.5-0.7 kg

Recommendations:
• Consult Maternal-Fetal Medicine specialist (MFM)
• Consider referral to tertiary hospital
• Create delivery plan (discuss at 32-34 weeks)

For more examples, see examples.md.