Pregnancy Due Date Calculator
Estimate your due date and trimesters from the first day of your last period.
- Free
- No signup
- Private: runs in your browser
- Works on mobile
For general information only. This is not medical advice. Please consult a doctor for personal health decisions.
Pregnancy Due Date Calculator tool
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How to use Pregnancy Due Date Calculator
- Enter your values in the fields above.
- The result updates instantly as you type or change an option.
- Copy the result or note it down. Nothing is saved on our servers.
Why use DocConvertPRO?
- Free to use with no signup or watermark.
- Everything runs in your browser. Your input is not uploaded.
- Works on phones, tablets and computers.
- Made for Indian users: rupees, lakh/crore formats and local use cases.
About this tool
Naegele’s rule adds 280 days to the first day of the last period.
This tool is for general information and is not medical advice. Consult a doctor for health decisions.
Frequently asked questions
Is the due date exact?
Only a small share of babies arrive on the due date.
Does the scan change it?
Your doctor may adjust the date after an ultrasound.
What if my cycle is irregular?
Rely on your doctor’s dating.