Pregnancy Timeline Generator

Enter your last menstrual period to generate a complete 40-week pregnancy milestone calendar with 8 key clinical milestones.

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About the Pregnancy Milestone Timeline

This timeline generator creates a personalized calendar of the 8 most clinically significant pregnancy milestones, with actual calendar dates based on your last menstrual period (LMP).

All milestone dates are calculated using the same LMP-to-gestational-week formula used by healthcare providers. The dates shown assume a standard 40-week pregnancy (adjusted to 37 weeks for twin pregnancies).

The milestones highlighted in green indicate weeks you have already passed in your current pregnancy. This helps you quickly see which appointments and events are upcoming versus completed.

Remember that your healthcare provider may schedule appointments at slightly different times based on your individual medical history and local protocols.

Frequently Asked Questions

This calculator provides estimates for educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your healthcare provider with questions about your health or your baby's health.

ACOG Guidelines