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babychakra1-blog · 5 years
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How does pregnancy calculator work
Once the good news is in, your excitement is at its peak and so is your eagerness to know the week you are in. Even if you’re a math expert, the calculation of the due date might seem like counting a can of worms. Unless you are quite sure about your ovulation cycle and can pinpoint the date of fertilization, you will remain perplexed about how far you are in the pregnancy. This is when a pregnancy calculator comes handy. Even when you have this tool with you, the calculation is not as easy as it may seem. You should first know when and where you are in the cycle.  You can use a pregnancy calculator to keep a tab of the essential dates. 
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There are multiple ways to determine the gestational age of the fetus. These are generally quite accurate. You can work out your due date with the first day of the last menstrual period and thus know where you are in your pregnancy cycle. A plethora of online tools can assist you in finding out the expected due date, but none provide guaranteed results. The purpose of these calculations is only to plan ahead, and mothers shouldn’t worry too much about dates and period of pregnancy. The entire pregnancy time is divided into 40 weeks and the expected due date is relative. The delivery can happen before or after a few weeks from the expected due date, which is completely normal.
Last Menstrual Period
If your periods are regular then the LMP method is quite reliable and accurate, and thus used by many doctors and midwives to calculate the week of pregnancy and the due date. The gestational age of the fetus is calculated from the first day of the last menstrual period till the present day. The date of fertilization cannot be calculated and thus this method is commonly used. However, if the periods are irregular, then gynaecologists prefer physical examination, during which they closely estimate the week of pregnancy.  The fundal height, i.e. the distance between the pubic bone and top of the uterus is checked during prenatal visits to confirm the week of pregnancy. 
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Ultrasound Scan 
During an ultrasound scan, the doctors measure the size of the fetus from top to bottom and predict the phase of pregnancy you are in, along with the expected due date. This date helps the doctors monitor the mother's health and fetus growth and track the tests and other details more precisely. Ultrasound scans happen at different stages of pregnancy, but not earlier than 8 weeks, thus this method provides results only after a certain period of time. Depending on the medical history of the patient, the ultrasound scan can be done more or less frequently.
Online Pregnancy Calculators
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Many women cannot wait until their visit to the doctor and want to figure out the dates and time frame of pregnancy as soon as the good news is confirmed. This is when they use the online pregnancy calculator to detect their week of pregnancy and expected due date. These calculators work on the prime principle of LMP or conception date and once one of these dates is input in the system, the online tools automatically generate the pregnancy calendar and indicate the week of pregnancy you are in along with the expected due date.  
However, these results are indicative only and the accurate confirmation comes only with lab reports after your tests are done by an experienced gynaecologist.
Author - Vidya Kanekar
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babychakra1-blog · 5 years
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Fetal development across three trimesters of pregnancy week by week
Every day during pregnancy is important for the mother and the baby. There are changes taking place each and every day in your fetus. The growth is rapid even though you may not feel it on the outside. Here is a summarized guide on the baby formation stages of pregnancy week by week.
First trimester
During the first trimester, all the most crucial developments take place. Your baby comes into the world after ovulation and implantation. The embryo is formed and thereafter, a whole lot of minute detailing happens in the baby. The eyes, ears, nose, upper lip and nostrils start taking shape. The heart starts beating and the fingers, toes and reproductive organs start forming and developing. The first trimester lasts for 13 weeks and by then, the fetus has become almost 3 inches in size and can start opening and closing the fists and curling the toes.
Second trimester
By this time, your baby is roughly 3.5 inches and weighs close to 1 ½ ounces. The fingerprints are developed and the heart is working overtime. The baby also develops the ability to hear. Very soon, you may start feeling kicks and flutters in your stomach.
14 weeks – your baby can make different expressions with their facial features and you may have started feeling more energetic with the nausea and fainting spells reduced.
15 weeks – the taste buds of your baby are forming now and he or she can also sense light.
In the 16th and 17th week, your baby goes through a growth spurt wherein your baby will double up in the weight and height. The soft cartilage changes to bone and the muscle development is also taking place side by side.
18 weeks - this is the time when you can know if the new addition to your family is a boy or girl. It’s a great time for an ultrasound.
During the next few weeks, your baby starts developing the sense of sound. So go ahead and start talking and singing to him. He will love it. The eyebrows have developed and you have reached the halfway mark of your pregnancy. The kicks and flutters have begun and your baby has started looking very close to a newborn with all the features developed distinctly. Your baby is long and lean, has started to gain some baby fat and has started growing hair ☺. By the end of the second trimester, your baby can perform simple actions like opening and closing eyes and sucking fingers. You have started becoming rounder and have a nice cute baby bump. Your pregnancy growth week by week has entered into the third trimester after 27 weeks.
Third trimester
These are the final few weeks of your pregnancy. During this stage, your baby will start putting on weight and by the end of the third trimester will be ready to come into this world.
28 weeks – your baby can start seeing light through your womb.
29 weeks – another very important week wherein your baby’s muscles and lungs are maturing and the head is growing to accommodate the developing brain.
During the next four weeks, there are tremendous changes in your body. Your uterus is growing rapidly making room for your growing baby. You will start becoming a little uncomfortable while walking and moving around due to the excess body weight.
34 weeks – the central nervous system and lungs are maturing this week.
The next five to six weeks are your final weeks into pregnancy wherein you may feel your baby drop slightly in your pelvis as you approach the due date. In the due course of this, the baby’s brain and lungs are maturing continuously. By the 39th week, your baby is full term and you can expect to deliver anytime soon. Wait for your little one to enter the next phase of your life – motherhood.
The baby growth in the womb week by week is a miracle in itself. A tiny egg matures into a fully grown baby in nine months is the most amazing feat.
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babychakra1-blog · 5 years
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Find information from BabyChakra on pregnancy, children's health, parenting and more, including expert advice, daily live chats with doctors and daily expert tips. https://www.babychakra.com/learn?utm_source=SEOArticle&utm_medium=FL
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