Your pregnancy, with care
Every week,
a new discovery.
Follow the weeks and your baby's estimated arrival.
You are at
16weeks
and 0 days of pregnancy
40%
of the journey
Estimated Due Date (EDD)
April 16, 2027
In168 days
Dates and details
Estimated Conception Date: July 24, 2026
112 / 280 days · 2nd Trimester (Week 14 to 27)
Week by week
Baby's development
About the size of a
Avocado
- Estimated Length
- 11.6cm
- Estimated Weight
- 100g
Crown to rump
Biometric average
Current week · 16 / 40
Fetal Development Milestones This Week
Baby senses light filtering through the belly and hears maternal sounds.
Tips & Wellness for Expecting Mom
Frequent timeframe to learn baby's gender via ultrasound scan.
Disclaimer: This calculator is intended for informational and personal tracking purposes. Due dates are statistical approximations (~5% of babies arrive on their exact due date). Always consult your OB-GYN or midwife.
How it works
1
Select your calculation method: 'By LMP (Last Menstrual Period)' or 'By Ultrasound Scan'.
2
If using LMP, enter the first day of your last period and average menstrual cycle duration.
3
If using ultrasound, enter the scan date and the recorded gestational age in weeks and days.
4
Review your exact pregnancy age, current trimester, and your official Estimated Due Date (EDD).
5
Explore the fruit comparison visualizer, estimated fetal weight/length, and developmental highlights.
Frequently asked questions
Is it really free?
Yes. The site is supported by ads, so you never pay or need to create an account.
How does Naegele's Rule calculate your due date?
Naegele's Rule adds 280 days (40 gestational weeks) to the first day of your LMP, adjusting for cycle lengths longer or shorter than 28 days. In obstetric practice, full-term labor typically occurs anytime between weeks 37 and 42.
Which is more accurate: LMP or dating ultrasound?
A first-trimester dating ultrasound (specifically between 8 and 12 weeks measuring Crown-Rump Length / CRL) is widely considered the most accurate method to date gestation, particularly for irregular cycles.
How are pregnancy trimesters divided?
The 1st Trimester spans weeks 1 through 13; the 2nd Trimester covers weeks 14 through 27; and the 3rd Trimester lasts from week 28 until birth (typically 38-41 weeks).
Do only 5% of babies arrive on their exact due date?
Yes. Due dates serve as an estimated benchmark. Healthy full-term births routinely occur anywhere across a 5-week window between 37 and 42 weeks.
Does it work on mobile?
Yes. The page adapts to your screen and does not require installing any app.