Pregnancy Calculator:
Estimate Your Baby's Arrival Date

Calculate Your Baby’s Due Date Instantly

Wondering when your baby will arrive? Use our free Pregnancy Due Date Calculator to get an accurate estimate of your due date based on your last menstrual period (LMP), ultrasound date, or IVF transfer date.

This tool is designed for expectant mothers, couples undergoing fertility treatments, and anyone looking to plan their prenatal journey with clarity and confidence. Trusted by families across Dubai and the UAE.

Ready to get started? Enter your details and see your estimated due date now.

What is a pregnancy due date calculator?

A pregnancy due date calculator is an online tool designed to help expectant mothers estimate the day their baby will likely be born. This calculator uses information such as the first day of your last menstrual period (LMP) or the conception date to predict your estimated due date (EDD). While no calculator can provide an exact date, it provides a close estimate that helps guide your preparations and expectations throughout pregnancy.

How Does the Pregnancy Due Date Calculator Work?

Our calculator uses standard obstetric guidelines to estimate your due date. Choose from the following methods:

• Last Menstrual Period (LMP)
  • The most common method for estimating due dates.
  • Enter the first day of your last period, and we’ll calculate a full-term 40-week pregnancy timeline.
• Ultrasound Scan
  • Best if your cycle is irregular or you’re unsure of your LMP.
  • Input the date of your ultrasound and how many weeks pregnant you were at that time.
• IVF Transfer Date
  • Ideal for patients who conceived through in vitro fertilization (IVF).
  • Select the embryo transfer date and embryo age (Day 3, Day 5, or Day 6).

Your due date is only an estimate; most babies are born within 1-2 weeks of their expected delivery date.

Foetal Development Week-by-Week

Pregnancy is commonly divided into three trimesters, each lasting approximately three months. Below is an overview of developmental milestones throughout each phase.

First Trimester (Weeks 1–12)

• Weeks 1–2: Pre-ovulation and ovulation phase. The uterus prepares for implantation.
• Week 3: Fertilization occurs, forming a zygote.
• Week 4: The blastocyst implants in the uterus. Early placenta begins forming.
• Week 5: The neural tube and primitive heart begin to develop.
• Week 6: Limb buds appear; the heartbeat may be visible on ultrasound.
• Week 7: Facial features and internal organs begin forming.
• Week 8: All major organs are developing; the embryo becomes a foetus.
• Week 9: Taste buds and early teeth structures emerge.
• Week 10: Fingers and toes lose their webbing; external ears form.
• Week 11: Facial features refine; bones begin to harden.
• Week 12: Organs are functioning; the foetus swallows amniotic fluid and produces urine.

By the end of the first trimester, the foetus measures approximately 2.5–3 inches, about the size of a plum.

Second Trimester (Weeks 13–28)

This is often the most comfortable stage for expectant mothers. Symptoms like nausea typically subside, and foetal movement becomes noticeable.

• Week 13: Vocal cords form; head-to-body proportions balance.
• Week 14: Fine hair (lanugo) develops; fingerprints begin forming.
• Week 15–16: Facial expressions develop; ears and lungs mature.
• Week 17–18: Fat accumulates; vernix (a protective coating) appears.
• Week 19–20: Movements like kicking are felt; sex can often be determined by ultrasound.
• Week 21–22: Foetus responds to sound and touch.
• Week 23–24: Lungs begin producing surfactant, vital for breathing.
• Week 25–28: Eyelids open; brain and lungs continue maturing.

By the end of the second trimester, the foetus is about 14 inches long—roughly the size of a cauliflower.

Third Trimester (Weeks 29–40)

This is the final stretch, where the foetus prepares for life outside the womb.

• Week 29–30: Brain development intensifies; foetus begins controlling temperature.
• Week 31–32: All organs are developed except lungs, which are still maturing.
• Week 33–34: Bones harden; fat continues accumulating.
• Week 35–36: Lanugo sheds; foetus gains weight rapidly.
• Week 37–38: Foetus "drops" into the pelvis in preparation for birth.
• Week 39–40: Full-term status. Lungs are mature, and the baby is ready to be born.

By week 40, the average baby weighs between 3 to 4 kilograms and is about 50 cm long.

Why Knowing Your Due Date Matters?

• 🗓️ Plan your prenatal visits and scans
• 🍼 Get ready for childbirth and maternity leave
• 🍎 Track baby’s development week-by-week
• 🧘 Practice stress-free prenatal care
• 🏥 Choose the right maternity care provider

Your due date helps guide your entire pregnancy care plan. That’s why at Fakeeh University Hospital, we combine smart digital tools with customized maternity packages to support you at every stage.

Explore our best maternity packages designed to offer complete care from early pregnancy checkups to labor, delivery, and postnatal care.

Factors That Can Affect Your Due Date

The due date calculated is an estimate, and only about 4% of babies are born on their actual due date. Many factors can influence when your baby is likely to arrive:

1. ‍Cycle Length: The average menstrual cycle is 28 days, but some women have shorter or longer cycles, which can affect the due date calculation.
2. ‍Ovulation Timing: Not every woman ovulates on day 14 of her cycle, which means conception may have occurred earlier or later.
3. ‍Multiple Pregnancies: If you are expecting twins or triplets, you are likely to deliver earlier than the calculated due date.
4. ‍Health Conditions: Health conditions such as high blood pressure or diabetes may lead to an early or induced delivery.
5. ‍Previous Pregnancies: If you have had multiple pregnancies, your delivery history may influence your current due date.
   

Why Choose Fakeeh University Hospital for Your Pregnancy Care?

Each pregnancy is unique. While development follows a general timeline, your obstetrician at Fakeeh University Hospital will guide you through every step—offering prenatal scans, routine checkups, and personalized support for you and your growing baby.

• Dubai’s first Doula-friendly hospital
• 8 water birth suites and personalized birthing experiences
• NICU with 16 bassinets for newborns needing special care
• Parenthood Programme with follow-up visits and lactation support
• Collaborative care with Nabta Health for holistic maternal wellness

Start Your Pregnancy Journey with Confidence

Your baby’s first milestone begins with knowing your due date.

At Fakeeh University Hospital, we provide exceptional prenatal care, ensuring the health and safety of both mother and baby. Our dedicated team of OB-GYN specialists, advanced diagnostic tools, and state-of-the-art birthing suites are here to support you from conception to delivery.

Book Appointment or call us +97144144444

Disclaimer:

The information provided in this blog, including the use of the pregnancy due date calculator, is intended for general informational purposes only and should not be considered medical advice. While every effort is made to ensure the accuracy of the content, the calculator provides an estimated due date based on standard pregnancy timelines, and individual factors may affect the actual delivery date. It is important to consult with a qualified healthcare provider for personalized medical advice, prenatal care, and any concerns regarding your pregnancy. Fakeeh University Hospital recommends regular checkups and consultations with your healthcare provider to monitor your pregnancy and ensure the health and safety of both mother and baby.