When is my baby due?

‍How to Use the Pregnancy Due Date Calculator

Using the calculator is easy and fast! Just follow these steps:

1. Choose Your Method
   First, select how you’d like to calculate your due date. Here are the three options:
   • First Day of Last Period (LMP): This is the most common way doctors calculate due dates, especially if you're not sure when you conceived.
   • Conception Date: If you know the exact day you conceived, this method is more precise and can give you a closer estimate.
   • IVF Transfer Date: For those who used in vitro fertilization (IVF), this method takes into account the exact date your embryo was transferred, adjusting for whether it was a Day 3 or Day 5 embryo transfer.
2. Enter Your Details
   Once you've chosen your method, the next step is to enter the necessary information:
   • If you choose LMP, we’ll ask for the date of your last menstrual period and your cycle length (if known).
   • If you choose Conception Date, simply enter the day you believe you conceived.
   • If you choose IVF, enter your IVF transfer date and the type of embryo transfer (whether it was Day 3 or Day 5).
3. Get Your Estimated Due Date
   Once you’ve entered your information, hit Calculate Due Date. The calculator will instantly provide you with your estimated delivery date, helping you visualize when you might meet your little one!

‍Why Use a Due Date Calculator?

Understanding your due date can help you plan for your pregnancy, from when to schedule your first ultrasound to when to start preparing for maternity leave. It’s an essential part of tracking your pregnancy milestones. Here’s a breakdown of each method:

Calculate from LMP (Last Menstrual Period)

‍If you don’t know the exact date of conception, doctors typically use the first day of your last period to estimate your due date. This method assumes you have a regular 28-day cycle, and it adds 280 days (or 9 months) from that first day. If your cycle is longer or shorter than 28 days, we’ll adjust the calculation accordingly, but this method is a great starting point for most.

Calculate from Conception

‍If you know when you conceived, this method is ideal. Conception typically happens about 2 weeks after the first day of your last period, so we add 266 days (about 9 months) to your conception date to estimate your due date. This method is more precise if you’ve been tracking ovulation or have a good idea of when conception occurred.

Calculate from IVF Transfer Date

‍If you conceived through IVF, your transfer date is a key piece of information. The calculator allows you to select whether you had a Day 3 embryo transfer (which is when the embryo is transferred on the 3rd day after fertilization) or a Day 5 embryo transfer (where the embryo is transferred after 5 days). IVF pregnancies are calculated slightly differently from natural pregnancies, so this method ensures an accurate estimate for IVF parents.

How Accurate Is This Calculator?

While this due date calculator is a helpful tool for estimating your pregnancy timeline, it’s important to remember that only about 5% of babies are born on their exact due date. The actual date of birth can vary by a few days or even weeks, but this tool provides a reliable estimate to guide your pregnancy journey.

What Else Can I Expect?

Knowing your due date is just the beginning! Here’s how it helps you throughout your pregnancy:

• Doctor Appointments: Many doctors schedule important check-ups, tests, and ultrasounds based on your estimated due date.
• Baby Growth: Tracking your pregnancy with the due date helps you follow your baby’s growth and milestones each week.
• Planning: It helps you start planning everything from prenatal classes to baby showers to maternity leave.

‍FAQs: Pregnancy Due Date Calculator

What if I have an irregular cycle?

‍No worries! If your menstrual cycle is longer or shorter than the typical 28-day cycle, simply choose the cycle length that most closely matches your regular cycle. This helps the calculator adjust the due date accordingly for more accuracy.

Which method should I use if I’m unsure?

‍If you don’t know the exact day you conceived, use the First Day of Last Period (LMP) method, which is the most commonly used method by doctors. If you know when you conceived or underwent IVF, those methods will provide a more precise estimate.

Why are there two IVF options?

‍If you underwent IVF, the type of transfer (Day 3 or Day 5) impacts the timing of implantation, and thus, the calculation of your due date. Choose the option that matches your IVF procedure for the most accurate result.

Start Calculating Your Pregnancy Due Date Today!

Ready to discover your due date? Simply select your preferred calculation method and enter your details to get your estimated delivery date. It’s quick, easy, and free!