Key Developments
Estimated Conception:
March 30, 2025
March 30, 2025
+ Pregnancy Test:
April 13, 2025
April 13, 2025
Estimated First Heart Beat:
April 23, 2025
April 23, 2025
Estimated Due Date:
December 21, 2025
December 21, 2025
Announcement Image
Birthday Signs
Baby's star sign is Sagittarius
Birthstone: Tanzanite Zircon Turquoise
Birth Flower: Holly or Narcissus
Birthstone Color: Baby Blue
Birthstone: Tanzanite Zircon Turquoise
Birth Flower: Holly or Narcissus
Birthstone Color: Baby Blue
Trimester Dates
Trimester One:
Mar 16, 2025 - Jun 21, 2025
0 - 13 WeeksTrimester Two:
Jun 22, 2025 - Sep 27, 2025
14 - 27 WeeksTrimester Three:
Sep 28, 2025 - Dec 21, 2025
28 - 40 WeeksMonths Timeline
| 1 Month Pregnant | Apr 16, 2025 |
| 2 Months Pregnant | May 16, 2025 |
| 3 Months Pregnant | Jun 16, 2025 |
| 4 Months Pregnant | Jul 16, 2025 |
| 5 Months Pregnant | Aug 16, 2025 |
| 6 Months Pregnant | Sep 16, 2025 |
| 7 Months Pregnant | Oct 16, 2025 |
| 8 Months Pregnant | Nov 16, 2025 |
| 9 Months Pregnant | Dec 16, 2025 |
| Due Date: December 21, 2025 | |
Date |
How Often to Visit Doctor[1] |
| Apr 13 - Sep 28 | Once a month during this time |
| Sep 28 - Nov 23 | Twice per month during this time |
| Nov 23 - Dec 21 | Once per week during this time |
Prenatal Testing Dates[2]
Early Ultrasound Scan:
May 11, 2025 to Jun 15, 2025
7 to 13 weeks
7 to 13 weeks
First Trimester Screening or Nuchal Translucency Scan (Blood Test and Ultrasound):
Jun 1, 2025 to Jun 15, 2025
11 to 13 weeks
11 to 13 weeks
Quad Screen (Blood Test):
Jun 29, 2025 to Aug 3, 2025
15 to 20 weeks
15 to 20 weeks
Second Trimester Ultrasound or Anomaly Scan:
Jul 20, 2025 to Aug 10, 2025
18 to 21 weeks
18 to 21 weeks
Glucose Challenge Screening (Blood Test):
Aug 31, 2025 to Sep 28, 2025
24 to 28 weeks
24 to 28 weeks
Your Firsts
| First missed period | Apr 13 | 4 Weeks |
| Baby's heart beat heard | Jun 08 | 16 Weeks |
| Belly definitely showing | Jul 06 | 16-18 Weeks |
| Baby kicks felt, second or later babies | Jul 20 | 18-20 Weeks |
| Friends and family may feel baby move | Oct 19 | 31 Weeks |
Baby's Developments
| Conception is most likely on this date | Mar 30 | 2 Weeks |
| First heart beat | Apr 23 | 5 Weeks |
| Major organs have formed and face is slowly forming | May 25 | 10 Weeks |
| Miscarriage risk decreases | Jun 8 | 12 Weeks |
| Your baby can see light through their closed eyelids | Jun 29 | 15 Weeks |
| You may be able to feel your baby move now | Jul 6 | 16 Weeks |
| Your baby can now hear sounds | Jul 27 | 19 Weeks |
| Third trimester, baby is "practice breathing" | Sep 28 | 28 Weeks |
| Eyelashes, fingernails, and toenails have now formed | Oct 26 | 32 Weeks |
Things to Consider
| Start planning maternity leave and postpartum work schedule. Tell boss about pregnancy | Jun 8 | 12 Weeks |
| Popular time to tell friends and family | Jun 8 | 12 Weeks |
| Start pediatrician interviews | Aug 3 | 20 Weeks |
| Good time to look into birthing classes for first pregnancies | Aug 10 | 21 Weeks |
| If banking cord blood, find facility and order kit | Aug 17 | 22 Weeks |
| Decide whether you want a birthing coach or doula. Start interviewing | Sep 28 | 28 Weeks |
| Have your baby shower anytime from now | Oct 12 | 30 Weeks |
| Good time to take birthing classes | Oct 12 | 30 Weeks |
| Popular time to have your last day of work | Nov 23 | 36 Weeks |
| Have your pediatrician chosen ready for baby after birth | Nov 23 | 36 Weeks |
| Plan who you want to keep in the loop when you go into labor | Nov 23 | 36 Weeks |
| Learn the symptoms of labor | Nov 23 | 36 Weeks |
When is my Baby Premature, Full Term or Late Term?[2]
| Babies born now are considered Extremely Premature | Sep 7 | 25 Weeks |
| Babies born now are considered Moderately Premature | Oct 5 | 29 Weeks |
| Babies born now are considered Mildly Premature | Nov 2 | 33 Weeks |
| Babies born now are considered Early Term | Nov 30 | 37 Weeks |
| Babies born now are considered Full Term | Dec 14 | 39 Weeks |
| Babies born now are considered Late Term | Dec 28 | 41 Weeks |
| Babies born now are considered Post Term | Jan 4 | 42+ Weeks |
Most Probable Due Range
| 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 Early Term | 12 Early Term | 13 Early 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 Full Term | 26 Full Term | 27 Full Term |
| 28 Late Term | 29 Late Term | 30 Late Term | 31 Late Term | |||
| S | M | T | W | T | F | S |
|---|---|---|---|---|---|---|
| 1 Late Term | 2 Late Term | 3 Late Term | ||||
| 4 | 5 | 6 | 7 | 8 | 9 | 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 December 21, 2026 (1 year)
Start kindergarten in December 21, 2030 (5 years)
Start high school in December 21, 2039 (14 years)
Start to drive in December 21, 2041 (16 years)
Finish high school in December 21, 2043 (18 years)
Graduate from college in 2048 (23 years)
Start kindergarten in December 21, 2030 (5 years)
Start high school in December 21, 2039 (14 years)
Start to drive in December 21, 2041 (16 years)
Finish high school in December 21, 2043 (18 years)
Graduate from college in 2048 (23 years)
Important Birthdays
First Birthday: December 21, 2026
5th Birthday: December 21, 2030
Sweet 16: December 21, 2041
21st Birthday: December 21, 2046
50th Birthday: December 21, 2075
5th Birthday: December 21, 2030
Sweet 16: December 21, 2041
21st Birthday: December 21, 2046
50th Birthday: December 21, 2075
40 Weeks of Pregnancy
0 Weeks Pregnant on Mar 16, 2025
1 Week Pregnant on Mar 23, 2025
2 Weeks Pregnant on Mar 30, 2025
3 Weeks Pregnant on Apr 06, 2025
4 Weeks Pregnant on Apr 13, 2025
5 Weeks Pregnant on Apr 20, 2025
6 Weeks Pregnant on Apr 27, 2025
7 Weeks Pregnant on May 04, 2025
8 Weeks Pregnant on May 11, 2025
9 Weeks Pregnant on May 18, 2025
10 Weeks Pregnant on May 25, 2025
11 Weeks Pregnant on Jun 01, 2025
12 Weeks Pregnant on Jun 08, 2025
13 Weeks Pregnant on Jun 15, 2025
14 Weeks Pregnant on Jun 22, 2025
15 Weeks Pregnant on Jun 29, 2025
16 Weeks Pregnant on Jul 06, 2025
17 Weeks Pregnant on Jul 13, 2025
18 Weeks Pregnant on Jul 20, 2025
19 Weeks Pregnant on Jul 27, 2025
20 Weeks Pregnant on Aug 03, 2025
21 Weeks Pregnant on Aug 10, 2025
22 Weeks Pregnant on Aug 17, 2025
23 Weeks Pregnant on Aug 24, 2025
24 Weeks Pregnant on Aug 31, 2025
25 Weeks Pregnant on Sep 07, 2025
26 Weeks Pregnant on Sep 14, 2025
27 Weeks Pregnant on Sep 21, 2025
28 Weeks Pregnant on Sep 28, 2025
29 Weeks Pregnant on Oct 05, 2025
30 Weeks Pregnant on Oct 12, 2025
31 Weeks Pregnant on Oct 19, 2025
32 Weeks Pregnant on Oct 26, 2025
33 Weeks Pregnant on Nov 02, 2025
34 Weeks Pregnant on Nov 09, 2025
35 Weeks Pregnant on Nov 16, 2025
36 Weeks Pregnant on Nov 23, 2025
37 Weeks Pregnant on Nov 30, 2025
38 Weeks Pregnant on Dec 07, 2025
39 Weeks Pregnant on Dec 14, 2025
40 Weeks Pregnant on Dec 21, 2025
What if My Due Date December 21, Has Changed?[3]
Your due date December 21st, 2025 could be changed if there is a significant difference between the due date based on ultrasound and the due date calculated from your LMP (December 21, 2025) 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