Key Developments
Estimated Conception:
August 25, 2025
August 25, 2025
+ Pregnancy Test:
September 8, 2025
September 8, 2025
Estimated First Heart Beat:
September 18, 2025
September 18, 2025
Estimated Due Date:
May 18, 2026
May 18, 2026
Birthday Signs
Baby's star sign is Taurus
Birthstone: Emerald
Birth Flower: Hawthorn or Lily
Birthstone Color: Green
Birthstone: Emerald
Birth Flower: Hawthorn or Lily
Birthstone Color: Green
Trimester Dates
Trimester One:
Aug 11, 2025 - Nov 16, 2025
0 - 13 WeeksTrimester Two:
Nov 17, 2025 - Feb 22, 2026
14 - 27 WeeksTrimester Three:
Feb 23, 2026 - May 18, 2026
28 - 40 WeeksMonths Timeline
| 1 Month Pregnant | Sep 11, 2025 |
| 2 Months Pregnant | Oct 11, 2025 |
| 3 Months Pregnant | Nov 11, 2025 |
| 4 Months Pregnant | Dec 11, 2025 |
| 5 Months Pregnant | Jan 11, 2026 |
| 6 Months Pregnant | Feb 11, 2026 |
| 7 Months Pregnant | Mar 11, 2026 |
| 8 Months Pregnant | Apr 11, 2026 |
| 9 Months Pregnant | May 11, 2026 |
| Due Date: May 18, 2026 | |
Date |
How Often to Visit Doctor[1] |
| Sep 8 - Feb 23 | Once a month during this time |
| Feb 23 - Apr 20 | Twice per month during this time |
| Apr 20 - May 18 | Once per week during this time |
Prenatal Testing Dates[2]
Early Ultrasound Scan:
Oct 6, 2025 to Nov 10, 2025
7 to 13 weeks
7 to 13 weeks
First Trimester Screening or Nuchal Translucency Scan (Blood Test and Ultrasound):
Oct 27, 2025 to Nov 10, 2025
11 to 13 weeks
11 to 13 weeks
Quad Screen (Blood Test):
Nov 24, 2025 to Dec 29, 2025
15 to 20 weeks
15 to 20 weeks
Second Trimester Ultrasound or Anomaly Scan:
Dec 15, 2025 to Jan 5, 2026
18 to 21 weeks
18 to 21 weeks
Glucose Challenge Screening (Blood Test):
Jan 26, 2026 to Feb 23, 2026
24 to 28 weeks
24 to 28 weeks
Your Firsts
| First missed period | Sep 08 | 4 Weeks |
| Baby's heart beat heard | Nov 03 | 16 Weeks |
| Belly definitely showing | Dec 01 | 16-18 Weeks |
| Baby kicks felt, second or later babies | Dec 15 | 18-20 Weeks |
| Friends and family may feel baby move | Mar 16 | 31 Weeks |
Baby's Developments
| Conception is most likely on this date | Aug 25 | 2 Weeks |
| First heart beat | Sep 18 | 5 Weeks |
| Major organs have formed and face is slowly forming | Oct 20 | 10 Weeks |
| Miscarriage risk decreases | Nov 3 | 12 Weeks |
| Your baby can see light through their closed eyelids | Nov 24 | 15 Weeks |
| You may be able to feel your baby move now | Dec 1 | 16 Weeks |
| Your baby can now hear sounds | Dec 22 | 19 Weeks |
| Third trimester, baby is "practice breathing" | Feb 23 | 28 Weeks |
| Eyelashes, fingernails, and toenails have now formed | Mar 23 | 32 Weeks |
Things to Consider
| Start planning maternity leave and postpartum work schedule. Tell boss about pregnancy | Nov 3 | 12 Weeks |
| Popular time to tell friends and family | Nov 3 | 12 Weeks |
| Start pediatrician interviews | Dec 29 | 20 Weeks |
| Good time to look into birthing classes for first pregnancies | Jan 5 | 21 Weeks |
| If banking cord blood, find facility and order kit | Jan 12 | 22 Weeks |
| Decide whether you want a birthing coach or doula. Start interviewing | Feb 23 | 28 Weeks |
| Have your baby shower anytime from now | Mar 9 | 30 Weeks |
| Good time to take birthing classes | Mar 9 | 30 Weeks |
| Popular time to have your last day of work | Apr 20 | 36 Weeks |
| Have your pediatrician chosen ready for baby after birth | Apr 20 | 36 Weeks |
| Plan who you want to keep in the loop when you go into labor | Apr 20 | 36 Weeks |
| Learn the symptoms of labor | Apr 20 | 36 Weeks |
When is my Baby Premature, Full Term or Late Term?[2]
| Babies born now are considered Extremely Premature | Feb 2 | 25 Weeks |
| Babies born now are considered Moderately Premature | Mar 2 | 29 Weeks |
| Babies born now are considered Mildly Premature | Mar 30 | 33 Weeks |
| Babies born now are considered Early Term | Apr 27 | 37 Weeks |
| Babies born now are considered Full Term | May 11 | 39 Weeks |
| Babies born now are considered Late Term | May 25 | 41 Weeks |
| Babies born now are considered Post Term | Jun 1 | 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 | 27 Early Term | 28 Early Term | 29 Early Term | 30 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 Early Term |
| 10 Early 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 Full Term |
| 24 Full Term | 25 Late Term | 26 Late Term | 27 Late Term | 28 Late Term | 29 Late Term | 30 Late Term |
| 31 Late Term | ||||||
Imagine
First footsteps in May 18, 2027 (1 year)
Start kindergarten in May 18, 2031 (5 years)
Start high school in May 18, 2040 (14 years)
Start to drive in May 18, 2042 (16 years)
Finish high school in May 18, 2044 (18 years)
Graduate from college in 2049 (23 years)
Start kindergarten in May 18, 2031 (5 years)
Start high school in May 18, 2040 (14 years)
Start to drive in May 18, 2042 (16 years)
Finish high school in May 18, 2044 (18 years)
Graduate from college in 2049 (23 years)
Important Birthdays
First Birthday: May 18, 2027
5th Birthday: May 18, 2031
Sweet 16: May 18, 2042
21st Birthday: May 18, 2047
50th Birthday: May 18, 2076
5th Birthday: May 18, 2031
Sweet 16: May 18, 2042
21st Birthday: May 18, 2047
50th Birthday: May 18, 2076
40 Weeks of Pregnancy
0 Weeks Pregnant on Aug 11, 2025
1 Week Pregnant on Aug 18, 2025
2 Weeks Pregnant on Aug 25, 2025
3 Weeks Pregnant on Sep 01, 2025
4 Weeks Pregnant on Sep 08, 2025
5 Weeks Pregnant on Sep 15, 2025
6 Weeks Pregnant on Sep 22, 2025
7 Weeks Pregnant on Sep 29, 2025
8 Weeks Pregnant on Oct 06, 2025
9 Weeks Pregnant on Oct 13, 2025
10 Weeks Pregnant on Oct 20, 2025
11 Weeks Pregnant on Oct 27, 2025
12 Weeks Pregnant on Nov 03, 2025
13 Weeks Pregnant on Nov 10, 2025
14 Weeks Pregnant on Nov 17, 2025
15 Weeks Pregnant on Nov 24, 2025
16 Weeks Pregnant on Dec 01, 2025
17 Weeks Pregnant on Dec 08, 2025
18 Weeks Pregnant on Dec 15, 2025
19 Weeks Pregnant on Dec 22, 2025
20 Weeks Pregnant on Dec 29, 2025
21 Weeks Pregnant on Jan 05, 2026
22 Weeks Pregnant on Jan 12, 2026
23 Weeks Pregnant on Jan 19, 2026
24 Weeks Pregnant on Jan 26, 2026
25 Weeks Pregnant on Feb 02, 2026
26 Weeks Pregnant on Feb 09, 2026
27 Weeks Pregnant on Feb 16, 2026
28 Weeks Pregnant on Feb 23, 2026
29 Weeks Pregnant on Mar 02, 2026
30 Weeks Pregnant on Mar 09, 2026
31 Weeks Pregnant on Mar 16, 2026
32 Weeks Pregnant on Mar 23, 2026
33 Weeks Pregnant on Mar 30, 2026
34 Weeks Pregnant on Apr 06, 2026
35 Weeks Pregnant on Apr 13, 2026
36 Weeks Pregnant on Apr 20, 2026
37 Weeks Pregnant on Apr 27, 2026
38 Weeks Pregnant on May 04, 2026
39 Weeks Pregnant on May 11, 2026
40 Weeks Pregnant on May 18, 2026
What if My Due Date May 18, Has Changed?[3]
Your due date May 18th, 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 (May 18, 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