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Tool: Pregnancy Week Calculator — Calculateur en Ligne Gratuit | HomeCalcPro | Imprimé le:
Pregnancy Week Calculator — Calculateur en Ligne Gratuit | HomeCalcPro
Calculs précis et instantanés avec formules standards pour Pregnancy Week Calculator.
Parameters & Body Metrics
Health & Fitness Targets
Evidence-BasedEnter your parameters above to compute your target metrics.
Pregnancy Gestational Week Formula
Transparent mathematical methodology explained in plain English.
Current Week = (Today - LMP Date) / 7 Days | Trimester 1: Wks 1-13 | Trimester 2: Wks 14-27 | Trimester 3: Wks 28-40Calculates completed gestational weeks and remaining days based on Naegele's standard 40-week pregnancy rule.
Variables Explained:
- First Day of Last Period (LMP): Date menstrual cycle began.
LMP Date 18 Weeks Ago (126 Days)
Determining exact gestational age and trimester.
- Completed Weeks: 18 Weeks and 0 Days.
- Current Trimester: Second Trimester (Weeks 14 to 27).
- Fetal Size Comparison: Approx size of a bell pepper (~5.6 inches, 6.7 oz).
- Remaining Time: 22 Weeks (154 Days) until 40-week due date.
Questions Fréquemment Posées: Pregnancy Week Calculator
Click any question below to expand quick answers, formulas, and expert tips.
What are the three pregnancy trimester boundaries?
First Trimester: Conception to Week 13; Second Trimester: Week 14 to Week 27; Third Trimester: Week 28 to Week 40+.
What percentage of babies are born exactly on their due date?
Only approximately 4% to 5% of babies are born on their exact calculated due date; most healthy births occur between weeks 37 and 42.