Pregnancy Calculator
Your Pregnancy Details
Trimester Progress
You are in your first trimester (weeks 1-13).
First Trimester (Weeks 1-13)
This is when your baby's organs begin to form. You may experience:
- Morning sickness and nausea
- Fatigue and tiredness
- Breast tenderness
- Frequent urination
Second Trimester (Weeks 14-26)
This is often considered the most comfortable phase:
- Baby is growing rapidly
- You may start to feel movements
- Energy levels typically increase
- Baby bump becomes noticeable
Third Trimester (Weeks 27-40)
Your baby is preparing for birth:
- Increased discomfort and back pain
- Braxton Hicks contractions
- Shortness of breath
- Swelling in ankles and feet
Countdown to Due Date
You have 0 weeks and 0 days until your due date.
Your estimated conception date was --/--/----.
Understanding Pregnancy Calculation
A pregnancy calculator estimates key dates and stages of pregnancy based on your menstrual cycle information. It helps you track your pregnancy journey by providing:
- Estimated Due Date (EDD) - Based on the first day of your last menstrual period
- Estimated Conception Date - Typically 11-21 days after your LMP
- Current Pregnancy Week - From 1 to 40 weeks
- Trimester Information - Progress through each pregnancy stage
How It Works
Pregnancy calculators use the first day of your last menstrual period (LMP) to estimate your due date using the Naegele's rule. The standard calculation:
Due Date = LMP + 280 days
(40 weeks)
If your cycle is longer or shorter than 28 days, the calculator adjusts for cycle length to provide a more accurate estimate.
Important Notes
Keep in mind that:
- Only about 5% of babies are born on their exact due date
- This calculator provides estimates based on averages
- Always consult with your healthcare provider for personalized information
- Ultrasound measurements provide the most accurate dating
Pregnancy Health Tips
While using this calculator to track your pregnancy:
- Schedule regular prenatal visits with your healthcare provider
- Take prenatal vitamins, especially folic acid
- Maintain a balanced diet and stay hydrated
- Get moderate exercise as approved by your doctor
- Consider joining prenatal classes for education and support