Pregnancy Weeks to Months Calculator - Track with Ease

Tracking your pregnancy doesn’t need to be confusing — and at Lunara, we get that better than anyone. Our pregnancy weeks to months calculator translates your body’s rhythm into clear milestones. By calculating pregnancy weeks to months, you’ll understand what’s happening and when — whether you’re 8 weeks or 20 weeks along. Use Lunara’s pregnancy month calculator by week or weeks to months calculator for smarter, stress-free planning throughout your journey.

Pregnancy Weeks to Months Calculator - Track with Ease

Tracking your pregnancy doesn’t need to be confusing — and at Lunara, we get that better than anyone. Our pregnancy weeks to months calculator translates your body’s rhythm into clear milestones. By calculating pregnancy weeks to months, you’ll understand what’s happening and when — whether you’re 8 weeks or 20 weeks along. Use Lunara’s pregnancy month calculator by week or weeks to months calculator for smarter, stress-free planning throughout your journey.

Pregnancy Weeks to Months Calculator - Track with Ease

Tracking your pregnancy doesn’t need to be confusing — and at Lunara, we get that better than anyone. Our pregnancy weeks to months calculator translates your body’s rhythm into clear milestones. By calculating pregnancy weeks to months, you’ll understand what’s happening and when — whether you’re 8 weeks or 20 weeks along. Use Lunara’s pregnancy month calculator by week or weeks to months calculator for smarter, stress-free planning throughout your journey.

Pregnancy Weeks to Months Calculator - Track with Ease

Tracking your pregnancy doesn’t need to be confusing — and at Lunara, we get that better than anyone. Our pregnancy weeks to months calculator translates your body’s rhythm into clear milestones. By calculating pregnancy weeks to months, you’ll understand what’s happening and when — whether you’re 8 weeks or 20 weeks along. Use Lunara’s pregnancy month calculator by week or weeks to months calculator for smarter, stress-free planning throughout your journey.

Please note: This pregnancy due date calculator offers an estimated timeline based on the date of your last menstrual period and assumes a 28-day cycle. While it’s a helpful tool to calculate your pregnancy due date and track your journey week by week, individual cycles may vary. That’s why results should be viewed as general guidance, not medical advice.

For the most accurate prediction, your healthcare provider may suggest an ultrasound. If you're wondering, "If I got pregnant today, when would I be due?" — this calculator gives a close estimate, but an ultrasound can confirm your expected due date with greater accuracy.

All calculations are done in your browser. We do not collect, process, or store any personal data entered. Your privacy is protected, and all data will be permanently erased once you exit or refresh this page.

Please note: This pregnancy due date calculator offers an estimated timeline based on the date of your last menstrual period and assumes a 28-day cycle. While it’s a helpful tool to calculate your pregnancy due date and track your journey week by week, individual cycles may vary. That’s why results should be viewed as general guidance, not medical advice.

For the most accurate prediction, your healthcare provider may suggest an ultrasound. If you're wondering, "If I got pregnant today, when would I be due?" — this calculator gives a close estimate, but an ultrasound can confirm your expected due date with greater accuracy.

All calculations are done in your browser. We do not collect, process, or store any personal data entered. Your privacy is protected, and all data will be permanently erased once you exit or refresh this page.

Please note: This pregnancy due date calculator offers an estimated timeline based on the date of your last menstrual period and assumes a 28-day cycle. While it’s a helpful tool to calculate your pregnancy due date and track your journey week by week, individual cycles may vary. That’s why results should be viewed as general guidance, not medical advice.

For the most accurate prediction, your healthcare provider may suggest an ultrasound. If you're wondering, "If I got pregnant today, when would I be due?" — this calculator gives a close estimate, but an ultrasound can confirm your expected due date with greater accuracy.

All calculations are done in your browser. We do not collect, process, or store any personal data entered. Your privacy is protected, and all data will be permanently erased once you exit or refresh this page.

Please note: This pregnancy due date calculator offers an estimated timeline based on the date of your last menstrual period and assumes a 28-day cycle. While it’s a helpful tool to calculate your pregnancy due date and track your journey week by week, individual cycles may vary. That’s why results should be viewed as general guidance, not medical advice.

For the most accurate prediction, your healthcare provider may suggest an ultrasound. If you're wondering, "If I got pregnant today, when would I be due?" — this calculator gives a close estimate, but an ultrasound can confirm your expected due date with greater accuracy.

All calculations are done in your browser. We do not collect, process, or store any personal data entered. Your privacy is protected, and all data will be permanently erased once you exit or refresh this page.

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Join a Movement of Empowered

Women and Teens.

5,000+

women and teens have wishlisted Lunara!

Lunara is about creating health and well-being, not just preventing disease — empowering women to thrive.

Sign up for Early Access

Join a Movement of Empowered

Women and Teens.

5,000+

women and teens have wishlisted Lunara!

Lunara is about creating health and well-being, not just preventing disease — empowering women to thrive.

Sign up for Early Access

Join a Movement of Empowered

Women and Teens.

5,000+

women and teens have wishlisted Lunara!

Lunara is about creating health and well-being, not just preventing disease — empowering women to thrive.

Sign up for Early Access

Key Takeaways on Pregnancy

Due Date Calculator

Key Takeaways on Pregnancy

Due Date Calculator

Key Takeaways on Pregnancy

Due Date Calculator

Lunara’s pregnancy due date calculator gives you an estimated due date based on the first day of your last period or known conception date.

Lunara’s pregnancy due date calculator gives you an estimated due date based on the first day of your last period or known conception date.

Most pregnancies last around 40 weeks. But every pregnancy is unique, so your baby might arrive a little earlier or later.

Most pregnancies last around 40 weeks. But every pregnancy is unique, so your baby might arrive a little earlier or later.

You can also use a pregnancy week calculator by due date to track your baby’s growth week by week.

You can also use a pregnancy week calculator by due date to track your baby’s growth week by week.

If you’re thinking, “How do I calculate my due date?” or “If I got pregnant today, when would I be due?” — our tool gives you a quick answer.

If you’re thinking, “How do I calculate my due date?” or “If I got pregnant today, when would I be due?” — our tool gives you a quick answer.

Your doctor may use an ultrasound to calculate your pregnancy due date more accurately and guide your prenatal care.

Your doctor may use an ultrasound to calculate your pregnancy due date more accurately and guide your prenatal care.

The due date pregnancy calculator is a helpful guide, but it doesn’t replace medical advice. Always follow up with your healthcare provider for confirmation.

The due date pregnancy calculator is a helpful guide, but it doesn’t replace medical advice. Always follow up with your healthcare provider for confirmation.

While some tools offer gender prediction based on due date, remember these are just for fun and not medically verified.

While some tools offer gender prediction based on due date, remember these are just for fun and not medically verified.

How is My Due Date Calculated?

How is My Due Date Calculated?

How is My Due Date Calculated?

Curious about how a pregnancy due date calculator works or how doctors estimate when your baby

might arrive? Let’s break it down with insights from Dr. Sara Two good, an OB-GYN at Cedars-Sinai

Medical Group in California. Most healthcare providers estimate your due date based on your menstrual cycle or conception data. If you’re using a period-tracking app, you’ll have the first day of your last menstrual period (LMP) handy—making it easier to calculate your pregnancy timeline.

Other Ways to Calculate Your Due Date

Other Ways to Calculate Your Due Date

Other Ways to Calculate Your Due Date

Depending on your conception method or cycle, doctors may use different ways to estimate your baby’s arrival.

1. Conception Date

1. Conception Date

If your cycle is regular and you were actively trying to conceive, you might have an idea of when conception occurred. However, due to the variability of ovulation and fertilization, this isn’t always the most accurate way to calculate pregnancy due date.

2. IVF Transfer Date

2. IVF Transfer Date

If you’ve undergone IVF, your pregnancy due date calculator becomes even more precise. Doctors calculate your estimated due date based on your IVF transfer date, knowing exactly when the embryo was transferred—typically a 3-day or 5-day transfer. Use Lunara’s IVF due date calculator to get a tailored estimate.

3. Ultrasound Dating

3. Ultrasound Dating

Ultrasound scans, especially in early pregnancy, can also help confirm or adjust your due date. This is particularly helpful for those with irregular cycles. The ultrasound measures your baby’s size to determine gestational age and ensure your pregnancy week calculator by due date remains accurate.

Using Your Last Menstrual Period (LMP)

Using Your Last Menstrual Period (LMP)

Using Your Last Menstrual Period (LMP)

The most common method to calculate my due date starts with the first day of your LMP. Even though conception doesn’t occur on that exact day, it’s a reliable reference point since ovulation and fertilization can be tricky to pinpoint. Sperm can survive for up to five days, and your ovulation may not happen on the same day every cycle.

Here’s how doctors typically estimate:

Here’s how doctors typically estimate:

Step 1: Start with the first day of your last period

Step 2: Add 280 days (or 40 weeks) for your estimated due date

For example, if your period started on January 1, your estimated due date would be around October

8. It’s a straightforward way to calculate my pregnancy due date—but it assumes a 28-day cycle.

Since cycle lengths vary, this method may not be 100% accurate for everyone.

At a Glance: When Are You Due?

At a Glance: When Are You Due?

At a Glance: When Are You Due?

If you’re wondering, & “If I got pregnant today, when would I be due?—here’s a rough idea:

If you’re wondering, & “If I got pregnant today, when would I be due?—here’s a rough idea:

Conceived in January? Due in October

Conceived in February? Due in November and so on

Remember, pregnancy is typically 40 weeks, but delivery can happen anywhere from 37 to 42

weeks. So even the best due date calculator week by week is just an estimate.

Remember, pregnancy is typically 40 weeks, but delivery can happen anywhere from 37 to 42 weeks. So even the best due date calculator week by week is just an estimate.

Remember, pregnancy is typically 40 weeks, but delivery can happen anywhere from 37 to 42 weeks. So even the best due date calculator week by week is just an estimate.

Can My Due Date Change?

Can My Due Date Change?

Can My Due Date Change?

Yes! While your estimated due date offers a helpful guide, it’s not set in stone. Most babies don’t

arrive exactly on their due date. Instead, think of it as a range—especially since your baby can be

born a couple of weeks early or late.

Yes! While your estimated due date offers a helpful guide, it’s not set in stone. Most babies don’t arrive exactly on their due date. Instead, think of it as a range—especially since your baby can be born a couple of weeks early or late.

Why Knowing Your Due Date Matters

Why Knowing Your Due Date Matters

Why Knowing Your Due Date Matters

Understanding your due date helps your doctor schedule important checkups and screenings. For

example, screening for gestational diabetes usually happens between weeks 24 and 28. Knowing

your baby’s gestational age is also crucial for managing high-risk pregnancies or planning around

potential preterm birth..

Understanding your due date helps your doctor schedule important checkups and screenings. For example, screening for gestational diabetes usually happens between weeks 24 and 28. Knowing your baby’s gestational age is also crucial for managing high-risk pregnancies or planning around potential pre-term birth.

Understanding your due date helps your doctor schedule important checkups and screenings. For example, screening for gestational diabetes usually happens between weeks 24 and 28. Knowing your baby’s gestational age is also crucial for managing high-risk pregnancies or planning around potential preterm birth..

And if you’re also curious about a due date pregnancy calculator gender prediction, keep in mind

that while some calculators may include fun guesses based on timing or Chinese calendars, a medical ultrasound is still your most reliable option.

And if you’re also curious about a due date pregnancy calculator gender prediction, keep in mind that while some calculators may include fun guesses based on timing or Chinese calendars, a medical ultrasound is still your most reliable option.

And if you’re also curious about a due date pregnancy calculator gender prediction, keep in mind that while some calculators may include fun guesses based on timing or Chinese calendars, a medical ultrasound is still your most reliable option.

Frequently Asked Questions

Frequently Asked Questions

How do I convert pregnancy weeks to months easily?

Why is pregnancy measured in weeks, not months?

How many months pregnant am I if I'm 20 weeks along?

Is the pregnancy weeks to months calculator accurate for irregular cycles?

Does Lunara store my pregnancy calculator data?

How do I convert pregnancy weeks to months easily?

Why is pregnancy measured in weeks, not months?

How many months pregnant am I if I'm 20 weeks along?

Is the pregnancy weeks to months calculator accurate for irregular cycles?

Does Lunara store my pregnancy calculator data?

How do I convert pregnancy weeks to months easily?

Why is pregnancy measured in weeks, not months?

How many months pregnant am I if I'm 20 weeks along?

Is the pregnancy weeks to months calculator accurate for irregular cycles?

Does Lunara store my pregnancy calculator data?

How do I convert pregnancy weeks to months easily?

Why is pregnancy measured in weeks, not months?

How many months pregnant am I if I'm 20 weeks along?

Is the pregnancy weeks to months calculator accurate for irregular cycles?

Does Lunara store my pregnancy calculator data?