Pregnancy Calculator
Estimate due date and pregnancy progress.
Calculated Output
Pregnancy Status
You are currently at
(0 weeks 0 days or 0 months 0 days)
Trimester
First Trimester
Due Date
Mar 15, 2027
Baby Stats Estimate
Length
0.0 IN
(0.0 cm)
Weight
0.0 LBS
(0 grams)
Conceived around Jun 22, 2026
0.0%
Pregnancy Progress
Trimester Insight
Welcome to the start! Focus on gentle movement and small, frequent meals to manage early fatigue and morning sickness.
Based on averages for a single pregnancy. Multiple pregnancies follow different patterns. Always consult your obstetrician.
Pregnancy Calculator: Track Your Baby's Growth and Due Date with CalQube
From the moment you discover you're pregnant, your mind starts asking hundreds of questions: "What week am I in?" and "When will I hold my baby for the first time?" The CalQube pregnancy calculator is designed to be your companion on this journey, using accurate algorithms to estimate your due date and provide you with information about your baby's development week by week.
Pregnancy Landmarks
| Developmental Milestone | Estimated Date |
|---|---|
| Conception | Jun 22, 2026 |
| Heartbeat Starts | Jul 13, 2026 |
| Organogenesis Complete | Aug 17, 2026 |
| Gender Reveal Potential | Oct 12, 2026 |
| Viability Mark | Nov 23, 2026 |
| Full Term | Mar 1, 2027 |
| Estimated Due Date | Mar 15, 2027 |
The calculator uses the most common medical method, the "Nigley Rule," to estimate your due date. To get the most accurate results, you will need to enter:
Last Period Date
Standard medical starting point for calculating weeks of pregnancy.
Cycle Length
Variations in cycle length affect ovulation and the estimated due date.
What does the calculator provide?
Expected Due Date
approx. 40 weeks mark
Gestational Age
exact week and day
Current Trimester
key stage milestones
Baby Countdown
days until arrival
Why do the weeks of pregnancy differ from the fetal age?
You may notice that your doctor calculates your pregnancy from the date of your last menstrual period, which makes the "gestational age" about two weeks before the "actual age of the fetus." This is because ovulation usually occurs about two weeks after the start of menstruation, but because the exact moment of fertilization is difficult to pinpoint, science has adopted the date of your last menstrual period as the official and standard starting point.
Tips for your Journey
Regular Checkups
Schedule doctor visits and tests on time.
Nutrition & Hydration
Ensure your body gets enough fluids to support fetal growth.
Folic Acid
Consult your doctor about vitamins for neurological development.
Common Questions
Will I give birth exactly on my predict date?
Only about 5% of women give birth exactly on their due date. Most occur between weeks 37 and 42.
Why might my doctor change the due date?
First trimester ultrasound is more accurate. If there's a difference, ultrasound date is used.
CalQube's results are estimates. Pregnancy requires medical monitoring.
Calculated Output
Pregnancy Status
You are currently at
(0 weeks 0 days or 0 months 0 days)
Trimester
First Trimester
Due Date
Mar 15, 2027
Baby Stats Estimate
Length
0.0 IN
(0.0 cm)
Weight
0.0 LBS
(0 grams)
Conceived around Jun 22, 2026
0.0%
Pregnancy Progress
Trimester Insight
Welcome to the start! Focus on gentle movement and small, frequent meals to manage early fatigue and morning sickness.
Based on averages for a single pregnancy. Multiple pregnancies follow different patterns. Always consult your obstetrician.
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