Pregnancy Due Date Calculator

The Pregnancy Due Date Calculator on NGDrives is a quick and reliable tool that helps you estimate your due date based on either the first day of your last menstrual period (LMP) or your date of conception.

This tool is especially helpful for expectant mothers, partners, caregivers, and even healthcare providers looking to determine important milestones in the pregnancy timeline, such as when to schedule prenatal checkups, plan for maternity leave, or begin preparing for delivery.

Knowing your due date allows for:

• Timely medical appointments and screenings
• Preparation for delivery and baby essentials
• Tracking fetal development and trimester transitions
• Informing work, travel, or family support plans

Common Use Cases:

• Newly pregnant women looking to confirm their expected delivery date.
• Midwives and birth professionals using the tool as a fast reference.
• Partners and caregivers planning time off or travel.
• Expecting parents building their baby budget and timelines.

For example, if your last period started on September 1st, the calculator adds 280 days (the average gestation period) and returns a due date of approximately June 7th. Similarly, if you know your conception date, it calculates forward 266 days to give a precise estimate.

Form Inputs:

• Calculation Method: Choose to calculate using either the Last Period or Date of Conception.
• First Day of Last Period: Enter the start date of your last menstrual cycle (if using LMP).
• Date of Conception: Input the estimated day you conceived (e.g., ovulation or fertilization date).

 What’s Calculated:

Estimated Due Date based on standard gestation lengths:

• 280 days from LMP
• 266 days from conception

Output:

• A single due date prediction displayed clearly.
• Optional trimester timeline (depending on platform development).

If you encounter any issues or have suggestions for improvements, please report them using the form below.