Pregnancy Week by Week
Track your pregnancy week by week from your due date, with milestones and development notes.
Week-by-week timeline from your due date — privateEstimates only — not medical advice. Confirm all dates and milestones with your doctor or midwife. Read our full disclaimer.
How this due date is calculated
Enter your estimated due date. The calculator shows your current week and a week-by-week reference of typical milestones and development.
A week-by-week reference is a general map, not a personalized schedule. Key milestones — the anatomy scan at 18–22 weeks, viability around 24 weeks, the Group B strep test near 36 — are anchored to gestational age, which is why they line up with the due date you enter rather than with calendar dates. Your provider tailors the exact timing, especially for twins, IVF, or higher-risk pregnancies.
What to expect
A week-by-week view turns a single due date into a timeline you can follow. Enter your due date above to see your current week, then use the table below as a general reference for what typically happens at each stage.
| Weeks | Typical milestone | Common notes |
|---|---|---|
| 4–5 | Positive pregnancy test likely | Implantation completes; hCG rises |
| 6–8 | First ultrasound often booked | Nausea and fatigue commonly begin |
| 9–12 | End of first trimester nears | Nuchal screening window; symptoms may ease |
| 13–16 | Second trimester starts | Energy often returns; bump becomes visible |
| 18–22 | Anatomy scan | Many learn the baby's sex |
| 24–27 | Viability milestone | Glucose screening usually done |
| 28–32 | Third trimester | Kick counts; braxton hicks may appear |
| 34–36 | Group B strep test | Birth plan discussed |
| 37–39 | Full term | Any time now; bag packed |
| 40 | Due date | Overdue plans reviewed with provider |
These are general patterns, not a schedule. Every pregnancy is different, and your provider will personalize care — especially for twins, IVF, or any condition that needs closer monitoring.
For fun-only extras, some parents like to check the baby's astrological sign from the due date or try folk "gender predictor" charts. Those are entertainment, not medical guidance.
Important note
These calculators use standard formulas — Naegele's rule (LMP + 280 days) and common IVF conventions (transfer date + 260–263 days). They give estimates for planning only. They are not a substitute for prenatal care, and only your provider can confirm your due date and track your baby's development. See the disclaimer for details.
FAQ
Due date with zodiac sign — what sign will baby be?
Check the week-by-week table against your due date; the baby’s sun sign depends on the actual birth date. This is for fun only and not medical.
Chinese gender predictor by due date
Some folk charts claim to predict a baby’s sex from the due date and the mother’s age. These have no medical basis and are for entertainment only.
Does maternal age change due date?
No. Your age does not change the due-date math, though it can affect how often your provider schedules monitoring.
Can due date predict symptoms?
Each week is associated with typical changes (for example, nausea often peaks around weeks 6–12), but everyone is different. Use the table as a general guide.