Key Developments
Estimated Conception:
December 24, 2025
December 24, 2025
+ Pregnancy Test:
January 7, 2026
January 7, 2026
Estimated First Heart Beat:
January 17, 2026
January 17, 2026
Estimated Due Date:
September 16, 2026
September 16, 2026
How Many Weeks Am I?
Get a full report here!
Birthday Signs
Baby's star sign is Virgo
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 10, 2025 - Mar 17, 2026
0 - 13 WeeksTrimester Two:
Mar 18, 2026 - Jun 23, 2026
14 - 27 WeeksTrimester Three:
Jun 24, 2026 - Sep 16, 2026
28 - 40 WeeksMonths Timeline
| 1 Month Pregnant | Jan 10, 2026 |
| 2 Months Pregnant | Feb 10, 2026 |
| 3 Months Pregnant | Mar 10, 2026 |
| 4 Months Pregnant | Apr 10, 2026 |
| 5 Months Pregnant | May 10, 2026 |
| 6 Months Pregnant | Jun 10, 2026 |
| 7 Months Pregnant | Jul 10, 2026 |
| 8 Months Pregnant | Aug 10, 2026 |
| 9 Months Pregnant | Sep 10, 2026 |
| Due Date: September 16, 2026 | |
Date |
How Often to Visit Doctor[1] |
| Jan 7 - Jun 24 | Once a month during this time |
| Jun 24 - Aug 19 | Twice per month during this time |
| Aug 19 - Sep 16 | Once per week during this time |
Prenatal Testing Dates[2]
Early Ultrasound Scan:
Feb 4, 2026 to Mar 11, 2026
7 to 13 weeks
7 to 13 weeks
First Trimester Screening or Nuchal Translucency Scan (Blood Test and Ultrasound):
Feb 25, 2026 to Mar 11, 2026
11 to 13 weeks
11 to 13 weeks
Quad Screen (Blood Test):
Mar 25, 2026 to Apr 29, 2026
15 to 20 weeks
15 to 20 weeks
Second Trimester Ultrasound or Anomaly Scan:
Apr 15, 2026 to May 6, 2026
18 to 21 weeks
18 to 21 weeks
Glucose Challenge Screening (Blood Test):
May 27, 2026 to Jun 24, 2026
24 to 28 weeks
24 to 28 weeks
Your Firsts
| First missed period | Jan 07 | 4 Weeks |
| Baby's heart beat heard | Mar 04 | 16 Weeks |
| Belly definitely showing | Apr 01 | 16-18 Weeks |
| Baby kicks felt, second or later babies | Apr 15 | 18-20 Weeks |
| Friends and family may feel baby move | Jul 15 | 31 Weeks |
Baby's Developments
| Conception is most likely on this date | Dec 24 | 2 Weeks |
| First heart beat | Jan 17 | 5 Weeks |
| Major organs have formed and face is slowly forming | Feb 18 | 10 Weeks |
| Miscarriage risk decreases | Mar 4 | 12 Weeks |
| Your baby can see light through their closed eyelids | Mar 25 | 15 Weeks |
| You may be able to feel your baby move now | Apr 1 | 16 Weeks |
| Your baby can now hear sounds | Apr 22 | 19 Weeks |
| Third trimester, baby is "practice breathing" | Jun 24 | 28 Weeks |
| Eyelashes, fingernails, and toenails have now formed | Jul 22 | 32 Weeks |
Things to Consider
| Start planning maternity leave and postpartum work schedule. Tell boss about pregnancy | Mar 4 | 12 Weeks |
| Popular time to tell friends and family | Mar 4 | 12 Weeks |
| Start pediatrician interviews | Apr 29 | 20 Weeks |
| Good time to look into birthing classes for first pregnancies | May 6 | 21 Weeks |
| If banking cord blood, find facility and order kit | May 13 | 22 Weeks |
| Decide whether you want a birthing coach or doula. Start interviewing | Jun 24 | 28 Weeks |
| Have your baby shower anytime from now | Jul 8 | 30 Weeks |
| Good time to take birthing classes | Jul 8 | 30 Weeks |
| Popular time to have your last day of work | Aug 19 | 36 Weeks |
| Have your pediatrician chosen ready for baby after birth | Aug 19 | 36 Weeks |
| Plan who you want to keep in the loop when you go into labor | Aug 19 | 36 Weeks |
| Learn the symptoms of labor | Aug 19 | 36 Weeks |
When is my Baby Premature, Full Term or Late Term?[2]
| Babies born now are considered Extremely Premature | Jun 3 | 25 Weeks |
| Babies born now are considered Moderately Premature | Jul 1 | 29 Weeks |
| Babies born now are considered Mildly Premature | Jul 29 | 33 Weeks |
| Babies born now are considered Early Term | Aug 26 | 37 Weeks |
| Babies born now are considered Full Term | Sep 9 | 39 Weeks |
| Babies born now are considered Late Term | Sep 23 | 41 Weeks |
| Babies born now are considered Post Term | Sep 30 | 42+ Weeks |
Most Probable Due Range
| S | M | T | W | T | F | S |
|---|---|---|---|---|---|---|
| 1 | ||||||
| 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| 23 | 24 | 25 | 26 Early Term | 27 Early Term | 28 Early Term | 29 Early Term |
| 30 Early Term | 31 Early Term | |||||
| S | M | T | W | T | F | S |
|---|---|---|---|---|---|---|
| 1 Early Term | 2 Early Term | 3 Early Term | 4 Early Term | 5 Early Term | ||
| 6 Early Term | 7 Early Term | 8 Early Term | 9 Full Term | 10 Full Term | 11 Full Term | 12 Full Term |
| 13 Full Term | 14 Full Term | 15 Full Term | 16 Full Term | 17 Full Term | 18 Full Term | 19 Full Term |
| 20 Full Term | 21 Full Term | 22 Full Term | 23 Late Term | 24 Late Term | 25 Late Term | 26 Late Term |
| 27 Late Term | 28 Late Term | 29 Late Term | 30 | |||
Imagine
First footsteps in September 16, 2027 (1 year)
Start kindergarten in September 16, 2031 (5 years)
Start high school in September 16, 2040 (14 years)
Start to drive in September 16, 2042 (16 years)
Finish high school in September 16, 2044 (18 years)
Graduate from college in 2049 (23 years)
Start kindergarten in September 16, 2031 (5 years)
Start high school in September 16, 2040 (14 years)
Start to drive in September 16, 2042 (16 years)
Finish high school in September 16, 2044 (18 years)
Graduate from college in 2049 (23 years)
Important Birthdays
First Birthday: September 16, 2027
5th Birthday: September 16, 2031
Sweet 16: September 16, 2042
21st Birthday: September 16, 2047
50th Birthday: September 16, 2076
5th Birthday: September 16, 2031
Sweet 16: September 16, 2042
21st Birthday: September 16, 2047
50th Birthday: September 16, 2076
40 Weeks of Pregnancy
0 Weeks Pregnant on Dec 10, 2025
1 Week Pregnant on Dec 17, 2025
2 Weeks Pregnant on Dec 24, 2025
3 Weeks Pregnant on Dec 31, 2025
4 Weeks Pregnant on Jan 07, 2026
5 Weeks Pregnant on Jan 14, 2026
6 Weeks Pregnant on Jan 21, 2026
7 Weeks Pregnant on Jan 28, 2026
8 Weeks Pregnant on Feb 04, 2026
9 Weeks Pregnant on Feb 11, 2026
10 Weeks Pregnant on Feb 18, 2026
11 Weeks Pregnant on Feb 25, 2026
12 Weeks Pregnant on Mar 04, 2026
13 Weeks Pregnant on Mar 11, 2026
14 Weeks Pregnant on Mar 18, 2026
15 Weeks Pregnant on Mar 25, 2026
16 Weeks Pregnant on Apr 01, 2026
17 Weeks Pregnant on Apr 08, 2026
18 Weeks Pregnant on Apr 15, 2026
19 Weeks Pregnant on Apr 22, 2026
20 Weeks Pregnant on Apr 29, 2026
21 Weeks Pregnant on May 06, 2026
22 Weeks Pregnant on May 13, 2026
23 Weeks Pregnant on May 20, 2026
24 Weeks Pregnant on May 27, 2026
25 Weeks Pregnant on Jun 03, 2026
26 Weeks Pregnant on Jun 10, 2026
27 Weeks Pregnant on Jun 17, 2026
28 Weeks Pregnant on Jun 24, 2026
29 Weeks Pregnant on Jul 01, 2026
30 Weeks Pregnant on Jul 08, 2026
31 Weeks Pregnant on Jul 15, 2026
32 Weeks Pregnant on Jul 22, 2026
33 Weeks Pregnant on Jul 29, 2026
34 Weeks Pregnant on Aug 05, 2026
35 Weeks Pregnant on Aug 12, 2026
36 Weeks Pregnant on Aug 19, 2026
37 Weeks Pregnant on Aug 26, 2026
38 Weeks Pregnant on Sep 02, 2026
39 Weeks Pregnant on Sep 09, 2026
40 Weeks Pregnant on Sep 16, 2026
What if My Due Date September 16, Has Changed?[3]
Your due date September 16th, 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 16, 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