How to Use the Due Date Calculator
Estimate your pregnancy due date based on different medical methods like LMP, Conception Date, IVF, or Ultrasound.
Steps
- Select your preferred calculation method from the dropdown menu.
- Input the required date, such as your Last Menstrual Period or Ultrasound date.
- If requested, adjust any secondary values like your average cycle length.
- Instantly view your Estimated Due Date (EDD), current trimester, and a visual progress timeline.
About This Tool
This calculator performs date math using Naegele's rule (LMP + 280 days), IVF embryo age offsets, and gestational age measurements, returning precise milestones independent of daylight saving time shifts.
FAQs
1. How accurate is the calculated due date?
It provides an estimate based on standard medical guidelines. However, only about 5% of babies are born on their exact due date.
2. Why does the Ultrasound method require weeks and days?
Ultrasounds measure fetal development (Gestational Age) directly in weeks and days. Providing this precise age alongside the scan date yields the most accurate EDD.
3. Can I use this for IVF pregnancies?
Yes. Select the IVF method and input your transfer date. You must also select whether a 3-day or 5-day embryo was transferred.