
Find Out Your Due Date Instantly!
Wondering when your little one will arrive? Our Pregnancy Due Date Calculator makes it easy to estimate your baby’s due date based on the first day of your last period. Simply enter the date, and let us do the rest!
Remember, this is just an estimate! Every pregnancy is unique, and your doctor can provide the most accurate timeline for your baby’s arrival.
Pregnancy Due Date Calculator
How Does the Pregnancy Calculator Work?
Our pregnancy due date calculator follows the Naegle’s Rule, which assumes a 280-day (40-week) pregnancy cycle. This means your estimated due date is calculated by adding 280 days to the first day of your last menstrual period (LMP).
If you have irregular cycles or conceived through IVF, your doctor may use ultrasound scans to determine your due date more accurately.
What’s Next? Your Pregnancy Timeline
Once you know your due date, here’s what you can expect during your pregnancy:
First Trimester (Weeks 1–12): Your baby is rapidly developing, and you may start experiencing morning sickness and fatigue.
Second Trimester (Weeks 13–26): Energy levels often improve, and baby’s movements become noticeable. Time to start planning!
Third Trimester (Weeks 27–40+): The final stretch! Your baby is growing fast, and you might experience more discomfort as your due date approaches.
Check out our blog for pregnancy tips, self-care advice, and must-have essentials!
Frequently Asked Questions (FAQs)
Can I calculate my due date if I have irregular periods?
Yes! However, the standard calculation may be less accurate. Your doctor might use an early ultrasound to determine your due date.
What if my due date changes?
Your doctor may adjust your due date based on ultrasounds, especially if your baby is measuring ahead or behind the expected growth.
Can I know the exact day I got pregnant?
Conception usually occurs about two weeks after the first day of your last period, but pinpointing the exact day can be tricky unless you tracked ovulation.
How accurate is this calculator?
Our calculator provides an estimate based on the standard 40-week pregnancy model. However, only about 4% of babies are born exactly on their due date—so think of it as a helpful guide rather than a set schedule!

Need more pregnancy tips? Browse our latest articles on pregnancy health, baby essentials, and labor & delivery.
Stay Connected! Sign up for our free weekly pregnancy updates to track your baby’s development and get expert tips delivered to your inbox.