Pregnancy Calculator

Comprehensive pregnancy tools including due date calculator, conception calculator, ovulation tracker, pregnancy weight gain calculator, and weekly pregnancy information.

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Due Date Calculator

Calculate your estimated due date based on your last menstrual period or conception date.

Pregnancy Results
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Estimated Due Date
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Current Week
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Days Remaining
Pregnancy Timeline
Conception Date -
End of First Trimester -
End of Second Trimester -
Method Used -

Conception & Ovulation Calculator

Calculate your fertile window, ovulation date, and likely conception dates.

Typically 12-14 days
Fertility Results
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Ovulation Date
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Fertile Window Start
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Fertile Window End
Cycle Information
Next Period Start -
Most Fertile Days -
Pregnancy Test Date -
Cycle Day Today -

Pregnancy Weight Gain Calculator

Calculate recommended weight gain during pregnancy based on your pre-pregnancy BMI.

Weight Gain Recommendations
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Pre-pregnancy BMI
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Total Recommended Gain
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Current Week Target
Weekly Gain Rate
First Trimester (total) -
Second & Third Trimester (per week) -
BMI Category -
Current Target Weight -

Pregnancy Week by Week

Track your pregnancy progress and learn about baby development each week.

Week 12 Information

Baby Development

Your baby is about the size of a lime. All vital organs are formed and beginning to function. Fingers and toes have separated.

Baby Size

Length: ~5.4 cm (2.1 inches)
Weight: ~14 grams (0.5 ounces)

Mom's Changes

Morning sickness may start to improve. Your uterus is rising above your pelvic bones. You might notice your waist thickening.

Important Notes

First trimester screening tests are typically done between weeks 11-14. Continue taking prenatal vitamins.

Pregnancy Timeline

Important milestones, tests, and developmental stages throughout pregnancy.

Weeks 1-4
Conception & Implantation

Fertilization occurs, embryo implants in uterus. Missed period at week 4.

Weeks 5-8
Embryonic Development

Major organs begin forming. Heart starts beating. First prenatal appointment.

Weeks 9-12
End of First Trimester

All organs formed. Risk of miscarriage decreases. Nausea may improve.

Weeks 13-16
Second Trimester Begins

Baby's sex becomes apparent. Quickening (first movements) may be felt.

Weeks 17-20
Anatomy Scan

Detailed ultrasound around week 20. Baby's movements become stronger.

Weeks 21-27
Viability Period

Baby could survive if born prematurely. Rapid brain development.

Weeks 28-31
Third Trimester

Baby gains weight rapidly. Regular prenatal appointments increase.

Weeks 32-36
Final Preparations

Baby positions for birth. Braxton Hicks contractions may occur.

Weeks 37-40+
Full Term & Delivery

Baby is considered full term at 37 weeks. Labor can begin anytime.

Pregnancy Health Guide

Essential information for a healthy pregnancy journey.

Nutrition & Diet

  • Take 400-800 mcg folic acid daily
  • Increase iron-rich foods
  • Consume adequate calcium
  • Stay hydrated (8-12 glasses water daily)
  • Avoid raw fish, unpasteurized dairy

Prenatal Appointments

  • Weeks 4-28: Every 4 weeks
  • Weeks 28-36: Every 2 weeks
  • Weeks 36-birth: Weekly
  • First ultrasound: 8-12 weeks
  • Anatomy scan: 18-22 weeks

Common Symptoms

  • Morning sickness (weeks 6-14)
  • Fatigue (first and third trimesters)
  • Back pain (second and third trimesters)
  • Heartburn (second and third trimesters)
  • Swelling (third trimester)

When to Call Doctor

  • Vaginal bleeding or spotting
  • Severe abdominal pain
  • Decreased fetal movement
  • Regular contractions before 37 weeks
  • Severe headaches or vision changes