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Future Baby Calculator 2017

Reviewed by Calculator Editorial Team

Planning for a baby in 2017? Our Future Baby Calculator helps you determine your estimated due date and understand your pregnancy timeline week by week. Simply enter your last menstrual period date or conception date to get accurate pregnancy milestones.

How to Use This Calculator

Using our Future Baby Calculator is simple:

  1. Enter your last menstrual period (LMP) date or conception date in the calculator form.
  2. Select whether you're using LMP or conception date.
  3. Click "Calculate" to see your estimated due date and pregnancy timeline.
  4. Review the results and pregnancy milestones chart.

The calculator uses standard pregnancy duration of 40 weeks (280 days) from the first day of your last menstrual period to determine your due date.

How the Calculation Works

The Future Baby Calculator uses this formula to determine your estimated due date:

If using Last Menstrual Period (LMP):

Due Date = LMP Date + 280 days

If using Conception Date:

Due Date = Conception Date + 280 days

This calculation is based on the average length of a full-term pregnancy, which is 40 weeks (280 days). The calculator does not account for individual variations in pregnancy length.

Note: Every pregnancy is unique. While this calculator provides an estimate, your actual due date may vary by a few days.

Understanding Your Pregnancy Timeline

Once you've calculated your due date, you can use this timeline to understand what to expect during each week of your pregnancy:

Week Milestone Development
1-4 Conception to Implantation Fertilization occurs, and the embryo implants in the uterine lining.
5-8 Organ Formation Major organs begin to form, including the heart, brain, and limbs.
9-12 Facial Features Facial features become more distinct, and the baby can now make facial expressions.
13-16 Movement The baby can move its limbs and make small movements.
17-20 Hair and Nails Hair follicles and nails begin to form.
21-24 Eyes and Ears Eyes can detect light, and ears are fully formed.
25-28 Fat and Skin Fat begins to accumulate, and the skin becomes less transparent.
29-32 Sleep and Wake Cycles The baby's sleep and wake cycles become more regular.
33-36 Preparation for Birth The baby's lungs continue to mature, and the amniotic fluid decreases.
37-40 Final Preparations The baby gains weight rapidly and prepares for birth.

Common Questions About Pregnancy Dates

How accurate is the estimated due date?

The estimated due date is based on the average length of pregnancy, which is 40 weeks. However, individual pregnancies can vary by a few days. Ultrasounds provide more precise due dates during the second trimester.

Can I use this calculator if I'm pregnant now?

Yes, you can use this calculator to track your pregnancy progress. Simply enter your last menstrual period date or conception date to see your estimated due date and current pregnancy week.

What if I don't remember my last menstrual period?

If you don't remember your last menstrual period, you can use your conception date instead. The calculator will provide an estimated due date based on that information.

How can I prepare for my baby's arrival?

Start preparing for your baby's arrival by creating a birth plan, setting up a nursery, and stocking up on essential baby supplies. Consider attending prenatal classes and meeting with your healthcare provider regularly.