Pregnancy Calculator

Pregnancy Calculator

When was the first day of your last period?

Instructions:

  1. Enter Last Menstrual Period (LMP) Date:
    • Click on the input field labeled "Last Menstrual Period (LMP)".
    • Select the date of your last menstrual period from the calendar that appears.
  2. Enter Cycle Length:
    • Click on the input field labeled "Cycle Length (in days)".
    • Input the average length of your menstrual cycle in days.
    • Ensure the entered value is between 20 and 44 days. Otherwise, an error message will appear.
  3. Calculate Due Date:
    • Once both the LMP date and cycle length are entered, click the "Calculate" button.
  4. View Due Date:
    • The calculated due date will be displayed below the form.
    • If any errors occur, such as an invalid cycle length, an error message will be shown instead.
  5. Repeat as Needed:
    • You can use the calculator as many times as needed by entering different LMP dates and cycle lengths.
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