Key Developments
Estimated Conception:
January 3, 2026
January 3, 2026
+ Pregnancy Test:
January 17, 2026
January 17, 2026
Estimated First Heart Beat:
January 27, 2026
January 27, 2026
Estimated Due Date:
September 26, 2026
September 26, 2026
Birthday Signs
Baby's star sign is Libra
Birthstone: Sapphire
Birth Flower: Aster or Morning Glory
Birthstone Color: Deep, Blue
Birthstone: Sapphire
Birth Flower: Aster or Morning Glory
Birthstone Color: Deep, Blue
Trimester Dates
Trimester One:
Dec 20, 2025 - Mar 27, 2026
0 - 13 WeeksTrimester Two:
Mar 28, 2026 - Jul 3, 2026
14 - 27 WeeksTrimester Three:
Jul 4, 2026 - Sep 26, 2026
28 - 40 WeeksMonths Timeline
| 1 Month Pregnant | Jan 20, 2026 |
| 2 Months Pregnant | Feb 20, 2026 |
| 3 Months Pregnant | Mar 20, 2026 |
| 4 Months Pregnant | Apr 20, 2026 |
| 5 Months Pregnant | May 20, 2026 |
| 6 Months Pregnant | Jun 20, 2026 |
| 7 Months Pregnant | Jul 20, 2026 |
| 8 Months Pregnant | Aug 20, 2026 |
| 9 Months Pregnant | Sep 20, 2026 |
| Due Date: September 26, 2026 | |
Date |
How Often to Visit Doctor[1] |
| Jan 17 - Jul 4 | Once a month during this time |
| Jul 4 - Aug 29 | Twice per month during this time |
| Aug 29 - Sep 26 | Once per week during this time |
Prenatal Testing Dates[2]
Early Ultrasound Scan:
Feb 14, 2026 to Mar 21, 2026
7 to 13 weeks
7 to 13 weeks
First Trimester Screening or Nuchal Translucency Scan (Blood Test and Ultrasound):
Mar 7, 2026 to Mar 21, 2026
11 to 13 weeks
11 to 13 weeks
Quad Screen (Blood Test):
Apr 4, 2026 to May 9, 2026
15 to 20 weeks
15 to 20 weeks
Second Trimester Ultrasound or Anomaly Scan:
Apr 25, 2026 to May 16, 2026
18 to 21 weeks
18 to 21 weeks
Glucose Challenge Screening (Blood Test):
Jun 6, 2026 to Jul 4, 2026
24 to 28 weeks
24 to 28 weeks
Your Firsts
| First missed period | Jan 17 | 4 Weeks |
| Baby's heart beat heard | Mar 14 | 16 Weeks |
| Belly definitely showing | Apr 11 | 16-18 Weeks |
| Baby kicks felt, second or later babies | Apr 25 | 18-20 Weeks |
| Friends and family may feel baby move | Jul 25 | 31 Weeks |
Baby's Developments
| Conception is most likely on this date | Jan 3 | 2 Weeks |
| First heart beat | Jan 27 | 5 Weeks |
| Major organs have formed and face is slowly forming | Feb 28 | 10 Weeks |
| Miscarriage risk decreases | Mar 14 | 12 Weeks |
| Your baby can see light through their closed eyelids | Apr 4 | 15 Weeks |
| You may be able to feel your baby move now | Apr 11 | 16 Weeks |
| Your baby can now hear sounds | May 2 | 19 Weeks |
| Third trimester, baby is "practice breathing" | Jul 4 | 28 Weeks |
| Eyelashes, fingernails, and toenails have now formed | Aug 1 | 32 Weeks |
Things to Consider
| Start planning maternity leave and postpartum work schedule. Tell boss about pregnancy | Mar 14 | 12 Weeks |
| Popular time to tell friends and family | Mar 14 | 12 Weeks |
| Start pediatrician interviews | May 9 | 20 Weeks |
| Good time to look into birthing classes for first pregnancies | May 16 | 21 Weeks |
| If banking cord blood, find facility and order kit | May 23 | 22 Weeks |
| Decide whether you want a birthing coach or doula. Start interviewing | Jul 4 | 28 Weeks |
| Have your baby shower anytime from now | Jul 18 | 30 Weeks |
| Good time to take birthing classes | Jul 18 | 30 Weeks |
| Popular time to have your last day of work | Aug 29 | 36 Weeks |
| Have your pediatrician chosen ready for baby after birth | Aug 29 | 36 Weeks |
| Plan who you want to keep in the loop when you go into labor | Aug 29 | 36 Weeks |
| Learn the symptoms of labor | Aug 29 | 36 Weeks |
When is my Baby Premature, Full Term or Late Term?[2]
| Babies born now are considered Extremely Premature | Jun 13 | 25 Weeks |
| Babies born now are considered Moderately Premature | Jul 11 | 29 Weeks |
| Babies born now are considered Mildly Premature | Aug 8 | 33 Weeks |
| Babies born now are considered Early Term | Sep 5 | 37 Weeks |
| Babies born now are considered Full Term | Sep 19 | 39 Weeks |
| Babies born now are considered Late Term | Oct 3 | 41 Weeks |
| Babies born now are considered Post Term | Oct 10 | 42+ Weeks |
Most Probable Due Range
| S | M | T | W | T | F | S |
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 Early Term | ||
| 6 Early Term | 7 Early Term | 8 Early Term | 9 Early Term | 10 Early Term | 11 Early Term | 12 Early Term |
| 13 Early Term | 14 Early Term | 15 Early Term | 16 Early Term | 17 Early Term | 18 Early Term | 19 Full Term |
| 20 Full Term | 21 Full Term | 22 Full Term | 23 Full Term | 24 Full Term | 25 Full Term | 26 Full Term |
| 27 Full Term | 28 Full Term | 29 Full Term | 30 Full Term | |||
| S | M | T | W | T | F | S |
|---|---|---|---|---|---|---|
| 1 Full Term | 2 Full Term | 3 Late Term | ||||
| 4 Late Term | 5 Late Term | 6 Late Term | 7 Late Term | 8 Late Term | 9 Late Term | 10 |
| 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| 18 | 19 | 20 | 21 | 22 | 23 | 24 |
| 25 | 26 | 27 | 28 | 29 | 30 | 31 |
Imagine
First footsteps in September 26, 2027 (1 year)
Start kindergarten in September 26, 2031 (5 years)
Start high school in September 26, 2040 (14 years)
Start to drive in September 26, 2042 (16 years)
Finish high school in September 26, 2044 (18 years)
Graduate from college in 2049 (23 years)
Start kindergarten in September 26, 2031 (5 years)
Start high school in September 26, 2040 (14 years)
Start to drive in September 26, 2042 (16 years)
Finish high school in September 26, 2044 (18 years)
Graduate from college in 2049 (23 years)
Important Birthdays
First Birthday: September 26, 2027
5th Birthday: September 26, 2031
Sweet 16: September 26, 2042
21st Birthday: September 26, 2047
50th Birthday: September 26, 2076
5th Birthday: September 26, 2031
Sweet 16: September 26, 2042
21st Birthday: September 26, 2047
50th Birthday: September 26, 2076
40 Weeks of Pregnancy
0 Weeks Pregnant on Dec 20, 2025
1 Week Pregnant on Dec 27, 2025
2 Weeks Pregnant on Jan 03, 2026
3 Weeks Pregnant on Jan 10, 2026
4 Weeks Pregnant on Jan 17, 2026
5 Weeks Pregnant on Jan 24, 2026
6 Weeks Pregnant on Jan 31, 2026
7 Weeks Pregnant on Feb 07, 2026
8 Weeks Pregnant on Feb 14, 2026
9 Weeks Pregnant on Feb 21, 2026
10 Weeks Pregnant on Feb 28, 2026
11 Weeks Pregnant on Mar 07, 2026
12 Weeks Pregnant on Mar 14, 2026
13 Weeks Pregnant on Mar 21, 2026
14 Weeks Pregnant on Mar 28, 2026
15 Weeks Pregnant on Apr 04, 2026
16 Weeks Pregnant on Apr 11, 2026
17 Weeks Pregnant on Apr 18, 2026
18 Weeks Pregnant on Apr 25, 2026
19 Weeks Pregnant on May 02, 2026
20 Weeks Pregnant on May 09, 2026
21 Weeks Pregnant on May 16, 2026
22 Weeks Pregnant on May 23, 2026
23 Weeks Pregnant on May 30, 2026
24 Weeks Pregnant on Jun 06, 2026
25 Weeks Pregnant on Jun 13, 2026
26 Weeks Pregnant on Jun 20, 2026
27 Weeks Pregnant on Jun 27, 2026
28 Weeks Pregnant on Jul 04, 2026
29 Weeks Pregnant on Jul 11, 2026
30 Weeks Pregnant on Jul 18, 2026
31 Weeks Pregnant on Jul 25, 2026
32 Weeks Pregnant on Aug 01, 2026
33 Weeks Pregnant on Aug 08, 2026
34 Weeks Pregnant on Aug 15, 2026
35 Weeks Pregnant on Aug 22, 2026
36 Weeks Pregnant on Aug 29, 2026
37 Weeks Pregnant on Sep 05, 2026
38 Weeks Pregnant on Sep 12, 2026
39 Weeks Pregnant on Sep 19, 2026
40 Weeks Pregnant on Sep 26, 2026
What if My Due Date September 26, Has Changed?[3]
Your due date September 26th, 2026 could be changed if there is a significant difference between the due date based on ultrasound and the due date calculated from your LMP (September 26, 2026) date.
The American College of Obstetricians and Gynecologists, the American Institute of Ultrasound in Medicine, and the Society for Maternal-Fetal Medicine have produced guidelines to help doctors decide when to change due dates. See chart here.
References:
- Prenatal Care Fact Sheet. http://womenshealth.gov/publications/our-publications/fact-sheet/prenatal-care.html
- Prenatal care and tests. Office on Women's Health (OWH) GOV - https://www.womenshealth.gov/pregnancy/youre-pregnant-now-what/prenatal-care-and-tests
- Committee Opinion No. 579. 2013. Definition of term pregnancy. Obstet Gynec. 122 (2013): 1139-40. doi: 10.1097/01.AOG.0000437385.88715.4a
- Committee Opinion No. 611. Method for estimating due date. Obstet Gynec. 124 (2014): 863-6. doi: 10.1097/01.AOG.0000454932.15177.be