Pregnancy Conception Calculator

Calculate when conception likely occurred based on due date or last menstrual period.

How to Use the Conception Calculator

1. Choose Calculation Method

Select whether you want to calculate from LMP date or from due date.

2. Enter Required Information

If using LMP: Enter your last menstrual period date and cycle length.

If using due date: Enter your estimated due date.

3. Click Calculate

Get the estimated conception date and date range.

Note: Conception typically occurs 2 weeks after the first day of your last menstrual period. This calculator provides estimates based on standard calculations.