Pregnancy Tools: EDD, GA, BMI & Bishop Score

Expected Date of Delivery

First Day of LMP

Current Gestational Age

First Day of LMP

BMI Calculator (Pre-Pregnancy)

Weight (kg)

Height (cm)

Bishop Score (Labor Readiness)

Cervical Dilation (cm)

Cervical Effacement (%)

Station

Cervical Consistency

Cervical Position

How Each Calculator Works

EDD: Naegele’s Rule (LMP + 280 days)
GA: Days since LMP → weeks + days + trimester
BMI: Weight(kg) / [Height(m)]² → WHO categories
Bishop Score: 0–13 scale; ≥8 = favorable for induction

BMI Categories (WHO)

< 18.5 → Underweight
18.5–24.9 → Normal
25–29.9 → Overweight
≥30 → Obese

Bishop Score Interpretation

0–5: Unfavorable (induction may fail)
6–7: Intermediate
8–13: Favorable (good chance of successful induction)

Medical Disclaimer: These tools are for educational purposes only. They do not replace professional medical assessment. Always consult your OB-GYN or midwife.