Pregnancy milestone calculator

Turn pregnancy weeks into calendar dates.

Estimate common pregnancy timeline markers like week 12, week 20, third trimester, and your due date.

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One small answer at a time

Use the result as a planning note, then confirm important details with your care team.

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Pregnancy timelineFebruary 11, 2027
Week 8July 2, 2026

Early prenatal visits often happen around this window.

Week 12July 30, 2026

The end of the first trimester is getting close.

Week 20September 24, 2026

The anatomy scan is commonly scheduled around this point.

Week 28November 19, 2026

The third trimester usually starts around here.

Week 37January 21, 2027

This is close to the early-term window.

Week 40February 11, 2027

Your estimated due date.

Helpful context

Simple answers before you use the result.

Dates are estimates

Pregnancy calculators use common dating rules. Ultrasound, cycle history, or IVF details may change your official date.

Use it as a planning guide

Your result can help with appointments, checklists, baby names, registry timing, and weekly planning.

Ask when unsure

If a date or symptom feels confusing, your clinician is the best place to confirm what it means for you.

Sources and safety

BumpCalc uses common pregnancy dating rules for planning. For official dating, ultrasound timing, IVF details, symptoms, or urgent concerns, use your clinician's guidance.