Enter any known detail such as your last period date, due date, ultrasound information, or IVF transfer date to get a free Pregnancy Term Calculation.
The Pregnancy Term Calculator helps you estimate your due date, track how far along you are, and understand upcoming milestones. It supports multiple input options so you can choose whatever information you already have.
How to Use
Select the input method that fits your situation, such as the first day of your last period, your expected due date, ultrasound measurements, conception date, or IVF transfer details. The Pregnancy Term Calculator processes your information and generates a full pregnancy timeline.
What You Receive
- Estimated due date
- Current gestational week and day
- Trimester position
- Milestones relevant to your stage
Example of Pregnancy Term Calculator
Input Details
| Field | Value |
|---|---|
| Calculate Based On | Conception Date |
| Conception Date | 18/09/2025 |
Pregnancy Summary
| Category | Result |
|---|---|
| Estimated Due Date | 2026-06-11 |
| Current Gestational Age | 10 weeks 6 days |
| Trimester | First Trimester |
These results are general estimates and should not replace medical advice.
Week-by-Week Timeline
| Week | Date | Trimester | Important Milestones |
|---|---|---|---|
| 1 | 2025-09-11 | First Trimester | Conception occurs |
| 2 | 2025-09-18 | First Trimester | Conception occurs |
| 3 | 2025-09-25 | First Trimester | Conception occurs |
| 4 | 2025-10-02 | First Trimester | Heart starts beating |
| 5 | 2025-10-09 | First Trimester | Heart starts beating |
| 6 | 2025-10-16 | First Trimester | Heart starts beating |
| 7 | 2025-10-23 | First Trimester | Heart starts beating |
| 8 | 2025-10-30 | First Trimester | Facial features form |
| 9 | 2025-11-06 | First Trimester | Facial features form |
| 10 | 2025-11-13 | First Trimester | Facial features form |
| 11 | 2025-11-20 | First Trimester | Facial features form |
| 12 | 2025-11-27 | First Trimester | Fetus movement begins |
| 13 | 2025-12-04 | First Trimester | Fetus movement begins |
| 14 | 2025-12-11 | Second Trimester | Fetus movement begins |
| 15 | 2025-12-18 | Second Trimester | Fetus movement begins |
| 16 | 2025-12-25 | Second Trimester | Gender may be visible via ultrasound |
| 17 | 2026-01-01 | Second Trimester | Gender may be visible via ultrasound |
| 18 | 2026-01-08 | Second Trimester | Gender may be visible via ultrasound |
| 19 | 2026-01-15 | Second Trimester | Gender may be visible via ultrasound |
| 20 | 2026-01-22 | Second Trimester | Mother can feel fetal movement |
| 21 | 2026-01-29 | Second Trimester | Mother can feel fetal movement |
| 22 | 2026-02-05 | Second Trimester | Mother can feel fetal movement |
| 23 | 2026-02-12 | Second Trimester | Mother can feel fetal movement |
| 24 | 2026-02-19 | Second Trimester | Fetus develops lungs |
| 25 | 2026-02-26 | Second Trimester | Fetus develops lungs |
| 26 | 2026-03-05 | Second Trimester | Fetus develops lungs |
| 27 | 2026-03-12 | Second Trimester | Fetus develops lungs |
| 28 | 2026-03-19 | Third Trimester | Third trimester begins |
| 29 | 2026-03-26 | Third Trimester | Third trimester begins |
| 30 | 2026-04-02 | Third Trimester | Third trimester begins |
| 31 | 2026-04-09 | Third Trimester | Third trimester begins |
| 32 | 2026-04-16 | Third Trimester | Fetus gains weight rapidly |
| 33 | 2026-04-23 | Third Trimester | Fetus gains weight rapidly |
| 34 | 2026-04-30 | Third Trimester | Fetus gains weight rapidly |
| 35 | 2026-05-07 | Third Trimester | Fetus gains weight rapidly |
| 36 | 2026-05-14 | Third Trimester | Fetus drops into pelvis |
| 37 | 2026-05-21 | Third Trimester | Fetus drops into pelvis |
| 38 | 2026-05-28 | Third Trimester | Fetus drops into pelvis |
| 39 | 2026-06-04 | Third Trimester | Fetus drops into pelvis |
| 40 | 2026-06-11 | Third Trimester | Estimated delivery |
Note: This timeline is an estimate and should be reviewed with your healthcare provider for personalized guidance.
Understanding the Results
The estimated due date helps you follow your progression and gives a clear view of where you are within the pregnancy term. Individual timelines vary, but the Pregnancy Term Calculator provides a structured view based on your details.
Common Questions
Is the Pregnancy Term Calculator accurate?
It uses widely accepted clinical formulas to offer a reliable estimate.
Which method should I use?
Choose the information you know. Ultrasound data and IVF dates are often the most precise, but every method provides a helpful timeline.
Why do different methods show small variations?
Pregnancy length can differ naturally. The Pregnancy Term Calculator uses your chosen input to create the clearest possible picture of your pregnancy term.