How to use this calculator
Select a calculation method, enter the required date, then click Calculate. The calculator will estimate your current pregnancy week, due date, baby size, and a full week-by-week schedule with key milestones.
Pregnancy Calculator
Estimate your pregnancy schedule based on your due date, last period, or other dates.
Results are estimates based on averages for single pregnancy.
Result
You are currently at week #23 (23 weeks 0 days or 5 months 9 days) of pregnancy.
The estimated due date is Sep 15, 2026.
You are in the second trimester.
On average, your baby is around 11.38 inches (28.9 cm) long and weighs around 1.1 pounds (501 grams).
Your baby was likely conceived on Dec 23, 2025.
Pregnancy Schedule
| Week | Date | Trimester | Important Milestones |
|---|---|---|---|
| Week 1 | Dec 9, 2025 – Dec 15, 2025 | first trimester | |
| Week 2 | Dec 16, 2025 – Dec 22, 2025 | ||
| Week 3 | Dec 23, 2025 – Dec 29, 2025 | Baby conceived | |
| Week 4 | Dec 30, 2025 – Jan 5, 2026 | Pregnancy test positive | |
| Week 5 | Jan 6, 2026 – Jan 12, 2026 | ||
| Week 6 | Jan 13, 2026 – Jan 19, 2026 | Heartbeat detectable by ultrasound | |
| Week 7 | Jan 20, 2026 – Jan 26, 2026 | ||
| Week 8 | Jan 27, 2026 – Feb 2, 2026 | ||
| Week 9 | Feb 3, 2026 – Feb 9, 2026 | ||
| Week 10 | Feb 10, 2026 – Feb 16, 2026 | ||
| Week 11 | Feb 17, 2026 – Feb 23, 2026 | ||
| Week 12 | Feb 24, 2026 – Mar 2, 2026 | ||
| Week 13 | Mar 3, 2026 – Mar 9, 2026 | second trimester | Miscarriage risk decreases |
| Week 14 | Mar 10, 2026 – Mar 16, 2026 | ||
| Week 15 | Mar 17, 2026 – Mar 23, 2026 | ||
| Week 16 | Mar 24, 2026 – Mar 30, 2026 | ||
| Week 17 | Mar 31, 2026 – Apr 6, 2026 | ||
| Week 18 | Apr 7, 2026 – Apr 13, 2026 | Baby begins making noticeable movements, can hear sounds, and gender can be found out. | |
| Week 19 | Apr 14, 2026 – Apr 20, 2026 | ||
| Week 20 | Apr 21, 2026 – Apr 27, 2026 | ||
| Week 21 | Apr 28, 2026 – May 4, 2026 | ||
| Week 22 | May 5, 2026 – May 11, 2026 | ||
| Week 23 | May 12, 2026 – May 18, 2026 | Premature baby may survive | |
| Week 24(now) | May 19, 2026 – May 25, 2026(today) | ||
| Week 25 | May 26, 2026 – Jun 1, 2026 | ||
| Week 26 | Jun 2, 2026 – Jun 8, 2026 | ||
| Week 27 | Jun 9, 2026 – Jun 15, 2026 | ||
| Week 28 | Jun 16, 2026 – Jun 22, 2026 | third trimester | Baby can breathe |
| Week 29 | Jun 23, 2026 – Jun 29, 2026 | ||
| Week 30 | Jun 30, 2026 – Jul 6, 2026 | ||
| Week 31 | Jul 7, 2026 – Jul 13, 2026 | ||
| Week 32 | Jul 14, 2026 – Jul 20, 2026 | ||
| Week 33 | Jul 21, 2026 – Jul 27, 2026 | ||
| Week 34 | Jul 28, 2026 – Aug 3, 2026 | ||
| Week 35 | Aug 4, 2026 – Aug 10, 2026 | ||
| Week 36 | Aug 11, 2026 – Aug 17, 2026 | ||
| Week 37 | Aug 18, 2026 – Aug 24, 2026 | ||
| Week 38 | Aug 25, 2026 – Aug 31, 2026 | Full Term | |
| Week 39 | Sep 1, 2026 – Sep 7, 2026 | ||
| Week 40 | Sep 8, 2026 – Sep 14, 2026 | ||
| Week 41 | Sep 15, 2026 – Sep 21, 2026 | ||
| Week 42 | Sep 22, 2026 – Sep 28, 2026 |
Note: The results of this calculator are estimations based on averages for single pregnancy. The results for twin pregnancy or multiple pregnancy are different.
About Pregnancy Calculator
About Pregnancy
Pregnancy is a term used to describe a woman's state over a time period (~9 months) during which one or more offspring develops inside of a woman. Childbirth usually occurs approximately 38 weeks after conception, or about 40 weeks after the last menstrual period. The World Health Organization defines a normal pregnancy term to last between 37 and 42 weeks.
During a person's first OB-GYN visit, the doctor will usually provide an estimated date (based on a sonogram) at which the child will be born, or due date. Studies have shown that fewer than 4% of births occur on the exact due date, 60% occur within a week of the due date, and almost 90% occur within two weeks of the due date.
Pregnancy is divided into three trimesters: The first trimester (weeks 1–12) involves rapid early development. The second trimester (weeks 13–27) is often considered the most comfortable, with reduced nausea and visible fetal movement. The third trimester (weeks 28–40+) involves final growth and preparation for birth.