New Conversation
We typically reply in a few minutes
Comprehensive Pregnancy Tool
Pregnancy Calculator —
Track Due Date, Weeks & Milestones
Understanding your pregnancy timeline is crucial for planning medical checkups and tracking your baby's growth. Use our free Pregnancy Calculator to estimate your due date, conception date, current week, and weekly milestones.
5Calculation Methods
42Weeks Tracked
100%Free to Use
Your Pregnancy Results
Based on Naegele's Rule (280 days / 40 weeks)
--
Estimated Due Date
--
Week 1
Week 13
Week 27
Week 40
Current Week
--
weeks & days
Trimester
--
of 3 trimesters
Progress
--
of pregnancy complete
Conceived Date
--
Baby Size
--
Baby Weight
--
Current Milestone
--
These are estimates based on standard pregnancy calculation methods. Every pregnancy is unique. Only about 5% of babies arrive on their exact due date. Consult your healthcare provider for personalised guidance.
Your Pregnancy — Week by Week
| Week | Date Range | Trimester | Important Milestones |
|---|
What is a Pregnancy Calculator?
A Pregnancy Calculator is a tool designed to estimate important milestones during pregnancy, such as the due date and weekly progress. It uses information like the first day of your last menstrual period (LMP) and, in some cases, the date of conception to calculate various pregnancy-related dates.
Due Date Calculator
Provides an estimate of when you are likely to deliver your baby based on your LMP or conception date.
Week Calculator
Tracks your pregnancy week by week, showing developmental milestones for both baby and mother.
Conception Calculator
Helps determine the approximate date of conception based on your LMP or expected due date.
EDD Calculator
Estimates the Expected Date of Delivery using Naegele's Rule or ultrasound-based methods.
How Does It Work?
The most common method used by a Pregnancy Calculator is based on Naegele's Rule, which adds 280 days (or 40 weeks) to the first day of the last menstrual period.
Naegele's Rule
This method assumes a 28-day menstrual cycle and is the standard used by most healthcare providers worldwide.
Pregnancy Date Formula
LMP + 280 Days = EDD
(Estimated Due Date)
(Estimated Due Date)
LMP = First Day of Last Menstrual Period
Note: For irregular cycles, ultrasound dating or conception date methods may provide more accurate results.
5 Calculation Methods
Due Date
Enter your known due date to reverse-calculate conception and LMP dates.
Last Period (LMP)
Most common method. Enter the first day of your last period and cycle length.
Ultrasound
Use ultrasound date and measured pregnancy length for more accurate dating.
Conception Date
If you know the exact conception date, get the most accurate EDD.
IVF Transfer Date
For IVF pregnancies, uses embryo transfer date and embryo age (Day 3/5/6).
Types of Pregnancy Calculators
Different types of calculators serve different needs throughout your pregnancy journey.
Pregnancy Estimator
A general tool to estimate your current stage in pregnancy and the due date.
Pregnancy Week Calculator
Tracks your pregnancy progress week by week, showing important developmental milestones.
IVF Week By Week Calculator
Designed for IVF pregnancies, using the embryo transfer date to estimate milestones.
Conception Date Calculator
Estimates the date of conception based on your LMP or due date.
Benefits of Using a Pregnancy Calculator
Accurate Planning
Helps in scheduling prenatal appointments and preparing for delivery.
Health Monitoring
Tracks important milestones for both mother and baby throughout pregnancy.
Customized Advice
Offers week-by-week guidance tailored to your pregnancy stage.
Peace of Mind
Reduces anxiety by providing clarity about the pregnancy timeline.
Pregnancy Week By Week: What to Expect
Here is a detailed week-by-week chart outlining the milestones in pregnancy.
| Week | Baby's Development | Mother's Experience |
|---|---|---|
| 1-4 | Fertilization and implantation | Mild cramping, hormonal changes |
| 5-8 | Heartbeat and limb buds form | Morning sickness, fatigue |
| 9-12 | Fingers, toes, and facial features | Noticeable bump, increased energy levels |
| 13-16 | Gender differentiation starts | Reduced nausea, weight gain begins |
| 17-20 | Baby's movements can be felt | Back pain, stretch marks appear |
| 21-24 | Lungs and digestive system develop | Increased appetite, Braxton Hicks contractions |
| 25-28 | Eyes open, and brain growth spikes | Shortness of breath, swollen feet |
| 29-32 | Baby gains fat and body hair sheds | Frequent urination, difficulty sleeping |
| 33-36 | Baby positions for birth | Intense Braxton Hicks, nesting instincts |
| 37-40 | Full-term and ready for delivery | Baby drops lower, labor signs may appear |
How to Use a Pregnancy Calculator
Using a Pregnancy Date Calculator is simple and involves the following steps:
Step 1: Input LMP
Enter the first day of your last menstrual period.
Step 2: Select Cycle Length
Adjust for your average menstrual cycle length (e.g., 28 days).
Step 3: View Results
The calculator will provide your estimated due date, conception date, and current week of pregnancy.
IVF Pregnancies: You can enter the embryo transfer date instead of the LMP for more accurate results.
IVF Pregnancy Week By Week Calculator
For IVF pregnancies, the embryo transfer date becomes the starting point instead of the LMP.
| Embryo Stage | Transfer Day | EDD Calculation |
|---|---|---|
| Fresh Embryo | Day 3 or Day 5 | Add 266 days to the retrieval/ovulation date |
| Frozen Embryo (FET) | Day 5 | Add 266 days to the transfer date |
Frequently Asked Questions
Common questions about pregnancy calculators and due date estimation.
No. A Delivery Date Calculator provides an estimate. Only 5% of babies are born on their exact due date. Most births occur within a two-week window around the estimated due date.
Accuracy depends on knowing your LMP or conception date. For irregular cycles, results may vary. Ultrasound dating in the first trimester is generally the most accurate method.
A Pregnancy Due Date Calculator estimates the delivery date, while a Conception Calculator identifies the approximate date of conception. Both use similar inputs but provide different outputs.
Conclusion
A Pregnancy Calculator is an invaluable tool for tracking and planning your pregnancy journey. Whether you are using a Maternity Due Date Calculator or a Pregnancy Chart Due Date, these tools provide clarity and reassurance during this special time.
By understanding how these calculators work and using them effectively, you can ensure a smooth and well-prepared pregnancy journey. Remember, while these tools are helpful, always consult your healthcare provider for personalised medical advice.
Quick Links
Contact Info
