With the Free Online Pregnancy Week Calculator, you can easily determine your current pregnancy week and track your baby's development week by week.
The calculation can be based on your due date, the date of conception or the first day of your last period. Each method provides an estimation of the current pregnancy week, your baby's growth stage and important milestones. Please note that every pregnancy is unique. The calculator provides an estimate and does not replace medical advice.
I wish you all the best for your pregnancy and a wonderful time ahead!
Instructions
Calculation Method: Choose the method from the dropdown menu. You can select Baby's Due Date, Conception Date or First Day of Last Period.
Calculation with Due Date: Enter your baby's expected due date. The calculator will count backwards to estimate the pregnancy start and calculate the current week.
Calculation with Conception Date: If you know the exact day of conception enter it here. The calculation is based on 266 days.
Calculation with Last Period (Medical Standard): Enter the first day of your last menstrual period. This option uses the medical standard of 280 days (40 weeks). If your cycle length differs from the standard 28 days you can adjust it for more accurate results.
Calculate: Click the Calculate button.
Results: The calculator will display your current pregnancy week with a description of your baby's development. You can also expand the view to see all pregnancy weeks with their milestones.