Pregnancy Due Date Calculator
Calculate your estimated due date, pregnancy week, trimester, conception date and pregnancy progress in seconds.
Your Pregnancy Details
You can change this if your usual cycle differs.
Your Pregnancy Timeline
Here is your estimated pregnancy information.
Your baby may arrive before or after this estimated date.
—
Your pregnancy timeline will appear here.
This calculator provides an estimate. Pregnancy dates can vary, especially when menstrual cycles are irregular.
How to Use Pregnancy Calculator?
Follow these simple steps to estimate your pregnancy timeline.
Enter your last period date
Choose the first day of your most recent menstrual period from the date picker.
Enter your average cycle length
Keep 28 days if your normal cycle is approximately 28 days. Otherwise, enter your usual cycle length.
Tap Calculate
Our calculator will estimate your due date and pregnancy timeline instantly.
Explore your results
Check your estimated due date, pregnancy week, trimester, progress and other estimated dates.
How Does a Pregnancy Calculator Work?
A pregnancy calculator generally uses the first day of the last menstrual period as the starting point for estimating pregnancy dates. A typical pregnancy is estimated at approximately 40 weeks from this starting date.
Because menstrual cycles and ovulation timing can vary, the result should be treated as an estimate rather than an exact prediction.
Pregnancy Trimesters
First Trimester
Approximately weeks 1–13.
Second Trimester
Approximately weeks 14–27.
Third Trimester
Approximately week 28 onward.
Frequently Asked Questions
How accurate is a pregnancy calculator? +
It provides an estimated pregnancy timeline. Your actual due date may differ depending on ovulation timing, cycle variation and clinical assessment.
Can this calculator confirm pregnancy? +
No. A calculator cannot confirm pregnancy. Pregnancy should be confirmed using an appropriate pregnancy test and, when needed, medical evaluation.
What if my cycle is longer than 28 days? +
Enter your usual average cycle length. The calculator adjusts the estimated timeline based on the value you provide.
Is the due date exact? +
No. An estimated due date is not a guaranteed delivery date. Your healthcare professional may provide a different estimate.
What if I don't remember my last period? +
If your dates are uncertain or your cycles are irregular, speak with a qualified healthcare professional for personalized pregnancy dating.
This pregnancy calculator is intended for general informational and educational purposes only. It is not a medical diagnostic tool and does not replace professional medical advice, diagnosis, treatment or prenatal care. The dates displayed are estimates and may differ from dates provided by your healthcare professional. If you are pregnant or think you may be pregnant, consult a qualified healthcare professional for personalized guidance.
What do you feel about this post?
Like
Love
Happy
Haha
Sad
