How to Calculate Pregnancy Weeks and Months Accurately

Pregnancy is one of the most exciting yet anxious phases of life. It brings a mixture of emotions and feelings. A woman experiences joys, frustration, depression, anxiety, and happiness, almost everything spontaneously during pregnancy.


Pregnancy, in human being usually last for about nine months, there can be a slight up and down like a week or month up or down. However, a doctor can still easily predict the expected date of the mother. It is obviously a little hard to know when the baby will come; it is actually sudden most of the time.

Though, these days it has become easy to calculate the exact months and days of pregnancy. It helps in taking precautions from initial stages. Here is how you can calculate the exact months and days of your pregnancy. Continue reading the article; you’ll certainly find some latest information in here. Have a look.

Calculate the exact date and month:

Primarily, you need to know every little detail about pregnancy. How long does it last? What is the normal time duration? What are the possibilities of early or late birth? You need to know every minute detail.

Pregnancy often last for about nine months, forty weeks or to be even more exact 280 days. This is something you really need to know to figure out the exact date of birth of the baby. If you have already taken the pregnancy test, then you might have counted your due date as well.

Although, it isn’t that simple. There are a few tips which you need to know to find when exactly your due date is.

Recall when your last period was:

Obviously, most of you know that during pregnancy your period comes to a halt, for a few months. So, whenever you think your period is delayed make sure you take a pregnancy test, but don’t always keep your hopes high.

After you had figured out when your last period was, you can easily calculate the exact day and month of your pregnancy. All you need to be as efficient and present-minded.

Note the date of your first ultrasound:

The date of your first ultrasound also helps you figure out what exactly the date is and what stage you are on. It is even more accurate than remembering the period date. The person carrying out the scan (sonographer), will accurately measure your baby from his head to his bottom. This is called his crown-rump length (CRL), and it gives a more accurate idea of how far along your pregnancy is.

Ultrasound determines the exact height and size of the baby which can make it easier for you to figure out what the date is. So, whenever you go to the doctor for the scans make sure you ask every question you have in mind, especially your due date.

Remember what a trimester is?
“Trimester” means “three months.” As most pregnancies are around nine calendar months long, each pregnancy is divided into three trimesters. This is just a useful way to describe the changes that are happening in your body:

  • The first trimester lasts from the very start of your pregnancy until you’re on 14th week of pregnancy. After you have discovered that you are pregnant, you need to know that you’ll have mixed feeling of emotions, you’ll feel excited and queasy, both at the same time.
  • The second trimester of pregnancy lasts from when you’re 14 weeks to 27 weeks plus six days pregnant. During this trimester you’ll probably feel much better than you did in the first one. You may start to bloom; your bump will show and early pregnancy symptoms will be behind you. Although the physical changes in the body will be seen rather than mental and emotional ones.
  • The third trimester lasts from when you’re 28 weeks pregnant until you have your baby. You’ll need extra energy to help your baby’s growth spurt, and tiredness will probably return. Eat loads of food, keep your diet healthy, and avoid junk food and lifting heavy material to keep the growth of the baby healthy.
  • A trimester also helps in determining the exact months and days of your pregnancy.

These are few things you need to know to calculate the exact date and months of the pregnancy. Isn’t it simple? Well, you should try the same method to make calculation easier.

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