Pregnancy Week Calculator

⚡ Auto-filled from your health data

🧬 My Health Data Edit Metrics ▾

Age (Years)

Biological Sex

Height (cm)

Weight (kg)

Systolic BP (mmHg)

Diastolic BP (mmHg)

Blood Sugar (mg/dL)

HbA1c (%) / FBS (mg/dL)

Waist Circumference (cm)

profile.hip

profile.neck

profile.creatinine

profile.chol

profile.lmp

profile.cycle_len

Activity Level

📈 Result Spectrum

— Pregnancy Week Calculator

Normal

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❓ Frequently Asked Questions (FAQ)

How do doctors calculate gestational age?

Obstetric gestational age is counted from the first day of your last menstrual period (LMP), spanning 40 weeks (280 days) to full term.

When do the three pregnancy trimesters start?

First trimester: Weeks 1–12; Second trimester: Weeks 13–27; Third trimester: Weeks 28–40+.

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⚠️ Important: Medical Disclaimer: This clinical calculator provides educational estimates and does not replace a consultation with a qualified physician.

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Copy and paste the HTML snippet below to embed this interactive South Asian clinical calculator on your website with attribution:

<iframe src="https://nirogilanka.com/de/pregnancy-week-calculator/?embed=1" width="100%" height="680" style="border:1px solid #cbd5e1;border-radius:16px;" loading="lazy" title="Pregnancy Week Calculator"></iframe><p style="font-size:12px;color:#475569;margin-top:6px;">Powered by <a href="https://nirogilanka.com/de/pregnancy-week-calculator/" target="_blank" rel="noopener">Pregnancy Week Calculator — Nirogi Lanka (Reviewed by Dr. Priya Sammani, MBBS)</a></p>