🤰Pregnancy Calculator
Calculate due date and trimester from your last period.
🆓 Free🔒 Secure⚡ Instant📱 Mobile-friendly🚫 No signup
Calculate pregnancy due date and trimester online for free. Enter your LMP date for instant results.
How to Use Pregnancy Calculator — Step by Step
- 1Enter your last menstrual period (LMP) date
- 2Click 'Calculate' — estimated due date is shown (40 weeks from LMP)
- 3Current week of pregnancy and trimester are displayed
- 4View a week-by-week pregnancy milestone calendar
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Frequently Asked Questions
Is this tool completely free?
Yes. All ToolNest tools are 100% free with no signup required, no account, and no watermarks added to output files.
Are my uploaded files secure and private?
All uploads use HTTPS encryption during transfer. Files are processed on secure isolated servers and automatically deleted within 2 hours of upload.
Does this tool work on mobile phones?
Yes. ToolNest works on any modern browser on iPhone, Android, tablet, or desktop — no app download or plugin needed.
Do I need to create an account?
No. Just open the tool, upload your file, and download the result. No email, no signup, no password.