How to calculate the due date for delivery
Calculate your due date: How to find your baby's due date
Choose a calculation method Last periodConception dateI know my due date
First day of my last period
BabyCenter's Due Date Calculator
Use our pregnancy due date calculator by plugging in either the date of your last menstrual cycle or the date you know you conceived. The calculator will do the rest.
How is my due date calculated?
There are several ways your due date is determined. If you happen to know the day you conceived, you can count 38 weeks from that day to find your due date. (Human gestation takes about 38 weeks.)
But very few expectant moms know exactly when they conceived. Even if you only had sex once during your fertile period, you wouldn't conceive on that day unless you happen to be ovulating. Sperm can live for up to five days inside your fallopian tubes. So, it could be up to five days after you have sex that you release an egg (ovulate) and it gets fertilized by a waiting sperm. That's the day you conceive.
So, without knowing the day of conception, how does anyone determine a due date?
First day of your last period
The most common way to calculate your pregnancy due date is by counting 40 weeks from the first day of your last menstrual period (LMP). And that's how most healthcare providers do it.
If your menstrual cycle length is the average length (28-day cycle), your menstrual cycle probably started about two weeks before you conceived. This explains why pregnancies are said to last 40 weeks instead of 38 weeks.
This method doesn't take into account how long your menstrual cycle actually is or when you think you might have conceived. But generally speaking, women typically ovulate about two weeks after their menstrual cycle starts. And women are more likely to know when their last period started than the day they ovulated.
Conception date
If you do happen to know precisely when you conceived – say, if you were using an ovulation predictor kit or tracking your ovulation symptoms – you can calculate your pregnancy due date based on your conception date.
Just choose that calculation method from the pulldown above and put in your date.
Note: Again, you don't necessarily conceive on the day you have sex.
IVF transfer date
If you conceived through IVF, you can calculate your due date using your IVF transfer date. If you had a Day 5 embryo transfer, count 261 days from your transfer date. If you had a Day 3 embryo transfer, count 263 days.
Can my due date change?
Your healthcare provider might revise your due date if your baby is measured during a first trimester ultrasound scan and found to be much bigger or smaller than expected for gestational age. This is more likely to happen if you have an irregular menstrual cycle length that makes it hard to pinpoint the date of conception.
Your healthcare provider will measure your baby during that ultrasound exam to figure out how far along your baby is and then provide you with a new due date.
What if I already know my due date?
If you already know your due date, you can use this calculator to see your pregnancy timeline.
It will tell you when you'll hit various milestones, and when you may be due for prenatal tests and prenatal visits. You'll also find what your baby's sign and birthstone will probably be and which famous people were born on your due date.
How likely am I to give birth on my due date?
Of course, a due date calculation is always approximate, whether it's from our tool or from your doctor or midwife. Only 1 in 20 women delivers on their due date. You're just as likely to go into labor any day during the two weeks before or after.
Want more information about how the weeks, months, and trimesters of pregnancy are counted? See our pregnancy timing chart.
How soon can I take a pregnancy test?
With all this talk about pregnancy due dates, you may be wondering when you can take a pregnancy test. To ensure you get the most accurate reading, it's best to wait a few days after your missed period to take a pregnancy test.
At-home urine tests measure the amount of hCG (human Chorionic Gonadotropin) present in your body.
If you take a pregnancy test before you miss your period, you may not get an accurate result, despite what some tests advertise.
If you're getting a blood test in your provider's office, you may get results sooner. These tests also measure the amount of hCG in your bloodstream, but they're more sensitive than at-home urine tests. Blood tests may be able to detect pregnancy six to eight days after ovulation.
Read more
- Your pregnancy, week by week
- Your first trimester pregnancy checklist
- Pregnancy Weight Gain Calculator
- Ovulation Calculator
- See all tools
2 Weeks Pregnant: Symptoms, Pictures & More
Are you pregnant this week?
It's complicated! You're not pregnant yet, but if you conceive this week, you'll be two weeks pregnant. That's because healthcare providers use your last menstrual period to determine your due date, so technically the first day of your period is also the first day of your pregnancy.
Since you ovulate about two weeks into your cycle, conception happens around the time you're two weeks pregnant – which means pregnancy starts before you've conceived.
The best time to conceive
Ovulation typically happens in the middle of your menstrual cycle. You're most fertile during the three days leading up to it. Signs you may be ovulating include changes in your basal body temperature, breast tenderness, mild cramps, and increased vaginal discharge.
Detecting ovulation
Want to get pregnant faster? Ovulation test strips can help you figure out the days when sex (or insemination) is most likely to lead to pregnancy. You can buy kits online and at most drugstores and supermarkets, near the pregnancy tests.
2 weeks is how many months?
You're in your first month!
Baby development at 2 weeks
Getting ready to grow a baby
During the past few days, an increase in estrogen and progesterone prompted the lining of your uterus to thicken to support a fertilized egg.
At the same time, in your ovaries, eggs have "ripened" in fluid-filled sacs called follicles.
An egg is released
Once you ovulate, an egg erupts from its follicle and is swept from your ovary into a fallopian tube. (Ovulation doesn't necessarily occur right in the middle of your cycle. For example, it could happen any time between days 9 and 21 for women with a 28-day cycle.)
Your baby at 2 weeks Tap the plus for more details
advertisement | page continues below
Fertilization
The journey of the sperm
During the next 24 hours, that egg will be fertilized if one of the nearly 250 million sperm in an ejaculation manages to swim from your vagina through your cervix, up through your uterus into the fallopian tube and penetrate the egg. About 400 sperm survive the 10-hour journey to the egg, but it's usually only one that succeeds in burrowing through its outer membrane.
The genes combine
During the next 10 to 30 hours, the sperm's nucleus merges with the egg's and they combine their genetic material.
If the sperm carries a Y chromosome, your baby will be a boy. If it has an X chromosome, you'll conceive a girl. The fertilized egg is called a zygote.
Implantation
The egg takes three or four days to travel from the fallopian tube to your uterus, dividing into 100 or more identical cells along the way. Once it enters the uterus, it's called a blastocyst. A day or two later, it will begin burrowing into the lush lining of your uterus, where it continues to grow and divide.
Pregnancy symptoms during week 2
Slippery cervical mucus
Cervical mucus is the vaginal discharge you sometimes find in your underwear. In the days around ovulation, it'll be clear, slippery, and stretchy (like raw egg whites).
Mild cramping
Some women notice mild cramps or twinges of pain in the abdomen, or a one-sided backache, around the time of ovulation. This is known as mittelschmerz – German for "middle pain."
Increased sex drive
Your sex drive may rev up and your body odor may be more attractive to men around the time you're fertile.
If odors are suddenly more intense, it could be your body's way of helping you home in on male pheromones. You've never been more ready to make a baby!
Tender breasts
Hormonal changes around ovulation may make your breasts feel a bit full or sore. To learn more about what to expect in the coming weeks, watch our video on how breasts change during pregnancy.
Cervical changes
During ovulation, your cervix is softer, higher, wetter, and more open. You can feel these changes if you reach inside your vagina with a finger to examine your cervix, though you may have to check it daily to recognize the differences.
A boost in your basal body temperature (BBT)
You can use a special thermometer to take your BBT every morning. On the day after you ovulate, it goes up a bit and stays elevated until your next period.
Your body at 2 weeks Tap the plus for more details
Pregnancy checklist at 2 weeks pregnant
Take your vitamins
It's not too early to take a prenatal vitamin that will provide essential nutrients for you and your baby.
Make sure it contains iron, vitamin D, calcium, and folic acid to reduce your baby's risk of certain birth defects. Also be sure your partner is getting the nutrients he needs for healthy sperm.
See your healthcare provider
Have a preconception checkup to make sure your body is in the best possible shape for baby-making. For example, find out whether you should stop taking any prescription or over-the-counter drugs or supplements. Also use this time to talk about any problems or concerns you may have about pregnancy or parenthood. If your provider can't help you, she can provide referrals to specialists or counselors.
Consider this blood test
You and your partner may want to get genetic carrier screening to see whether you carry genes that would put your baby at risk for serious inherited illnesses. Although many of these conditions are rare, a large study found that 24 percent of those tested were carriers for at least one genetic mutation. Talking to a genetic counselor will help you stay informed about your reproductive choices.
Have frequent sex
Have sex every other day to boost your chances of conceiving. Find out how long it usually takes to get pregnant – most couples need more than a few tries before they can announce that a baby's on the way. Don't use lubricant when you're trying to get pregnant since studies have found that it can damage sperm and inhibit the journey to the egg.
Make time for self-care
When you take care of your mental and physical well-being, you're better able to care for others. Start filling your cup now by eating foods that support pregnancy, getting good quality sleep, exercising, and managing your stress so that you'll be ready when your baby comes. Try massage, yoga, or deep breathing: Reducing your stress levels can increase your odds of conceiving and having a healthy pregnancy.
Prepare your body for pregnancy
Taking the time to strengthen your belly and back before (or while) your body changes will benefit you throughout pregnancy and beyond.
A stronger core prevents back problems as your bump grows, and even shortens your recovery time after childbirth. Check out these three exercises that target your core.
Prepare your mind for pregnancy
Learn how your mind influences your body and how you can use mind-body techniques to support your health. Practice positive self-talk, use affirmations, or download a mental health app.
Know what to avoid during pregnancy
When you're trying to conceive or newly pregnant, you'll want to steer clear of smoking, alcohol, and large amounts of caffeine, as well as less obvious things. Check out our list of 10 things to avoid when you're trying to get pregnant.
Shipping Time & Cost Calculator: UPS
The Time & Cost Calculator helps you find delivery dates and times for all available UPS express and package services in over 220 countries and territories. You can also use the Time and Cost Application to determine shipping costs for a range of services in the many countries where UPS operates.
How to calculate terms and costs
Appendix Calculation of terms and costs is in tab Shipment on ups.com.
- Select the Send tab on any ups.com page.
- Select Calculate time and cost .
- Follow the instructions, paying attention to the required fields, (required fields are marked with ).
About delivery times
UPS allows you to calculate delivery times for express and package shipments to any location served by UPS. When calculating the delivery time, you will be offered several options from which you can choose the one that is suitable for sending your cargo to its destination. You will be able to see the delivery times for each shipping service as well as the latest arrival time of the courier. With the ability to quickly make changes to your details and quickly view the results on the same screen, you can use this information to make the best choice about how your shipment will be shipped.
About Shipping Costs
Use the Time & Cost Calculator to compare guaranteed delivery times and published UPS shipping rates worldwide. With the application for calculating the time and cost, you can:
- Get a fare calculation in the currency of the country of departure
- Get rates and edit shipping information for multiple shipments
- Calculate the cost of additional services, if any
- View summary information about tariffs in a convenient and simple table
- See detailed fare information, including zones, only when needed
- Sort your results by time or cost
- Receive information on international delivery dates and times for door-to-door service (including customs clearance)
Freight information is not available for all countries. If the Time and Cost App is not available for the countries you have selected, please contact your local UPS office for shipping charges.
Additional Freight Notes:
- Shipping rates suggested are based on the information you provide.
Additional fees may apply and the total shipping cost may vary depending on your UPS account number and how the package is handled by UPS. See the current UPS Tariff and Service Guide for details. - Shipping rates do not include duties, taxes and other customs clearance costs. Other additional shipping charges or additional service charges may apply, and the final shipping cost may vary depending on the nature of the sender and the nature of the shipments actually delivered by UPS and the services requested for them.
Calculation of terms and costs
Top
Calculation of the delivery time of cargo by rail transport
The term of cargo delivery is calculated in the norm of time, which is allocated for the movement of the train from the point of departure to the final destination. This parameter is calculated in days, the time is set taking into account the norms of the period required for the implementation of accompanying procedures, the movement of the train to places, additional work.
Before you carefully understand the timing of delivery, it will be useful to familiarize yourself with the specifics and features of international deliveries involving railways.
In the development of international trade and economic relations, the transportation of material values with the involvement of the railway occupies an important place. This type of transport is often used to transport raw materials, non-standard equipment, equipment, items over long distances. This can be implemented quickly and efficiently, in any season of the year and at an affordable cost, especially in comparison with air deliveries.
Cargo transportation by trains is considered interstate interaction, which is why they are carried out exclusively in accordance with the Agreement signed by the heads of Asia, Russia, and the CIS. The agreement defines uniform transportation rules, the use of special documentation that has a single form. It also regulates how to calculate the delivery time of cargo by rail transport.
Liability for broken or lost cargo is also determined subject to the provisions of the Agreement. Compliance with its norms is regulated by an international convention.
Types of cargo transportation by rail
If we note the types of transport involved, then international deliveries are divided into the following:
- wagon - this is how mail, clothing, household products are transported;
- refrigerated - closed wagons are used, which are equipped with a refrigeration unit;
- container;
- hopper - bulk materials are transported in this way;
- platform - such trains are used for the delivery of large installations, wheeled vehicles, and other types of oversized items.
It should be noted that the delivery time depends not only on its type, dimensions and danger of the cargo, but also on the delivery route. Transportation of raw materials is carried out using open-type wagons, and liquid substances - tanks.
The use of trains is beneficial when you need to send large volumes of goods.
Delivery time is calculated from the first night after the goods are accepted for transportation. The distance that the train must travel is taken into account. An increase in the delivery time is allowed if there are circumstances that prompted the slowdown in the movement of the train.
Determining the timing of delivery of goods to the railway
The calculation of the delivery time of the cargo starts from 00:00 on the day following the day of placing the order. The date of receipt of the goods and the estimated time of expiration of the delivery period of the goods, established on the basis of railway delivery rates or on the basis of an agreement between the parties, is noted by the carrier in a special waybill.
From what moment the delivery time is calculated
The goods were delivered on time if, before the end of the period indicated in the invoice, the transport company ensured the unloading of the goods at the destination railway station.
