First trimester pregnancy normally passes quick because many women don’t even realize they are pregnant until it’s almost over. The development of a baby begins the same for every woman making it a very predictable pattern. There are many different pregnancy calendars available to show you where you are at currently in your pregnancy and how much the baby grows. You can even see a picture or illustration of what your baby looks like for each of the different pregnancy stages.

From conception to delivery you will have many questions about how your baby is developing and growing inside of you. One of the biggest things you need to know is when you are due. To figure your due date, just count ahead 40 weeks from the first day of your last period. Your doctor will ask you a few other questions when they are calculating your pregnancy due date and then compare it with the size of your uterus to make sure the due date is comparable with the size.

The first trimester of pregnancy is when you will experience the nausea and exhausted feeling that women get while their body is making changes. Nausea is one of the first signs of pregnancy you may have, even before you miss a period. It’s good to know that for many women it passes soon after you discover you are pregnant.

During the first trimester of pregnancy the egg becomes fertilized and travels down the fallopian tubes where fertilization normally takes place. This happens in the first few days and then small hair like cilia move the fertilized egg into the uterus where it buries into the uterine wall. The placenta starts to form during the third week and will nourish your baby all throughout the rest of the pregnancy.

The fourth week of the third trimester of pregnancy is known as the start of the embryonic period. This is when the brain and major organs start to develop. At week five there is a heartbeat. Although the baby is only the size of the point on a pencil, the heart starts to beat and circulate blood throughout the body.

It will take the baby until week 9 in the first trimester of pregnancy to even be an inch long. In the 10th week, the baby will begin to form a skeleton and form tooth buds. At week 12, the sex can be distinguished and fingernails and toenails form.

With all of these changes the baby is going through and the development of such vital organs, it’s very important to for the expectant mother to get the right nutrients in the foods she chooses to eat. Don’t fall into the trap of eating for two. A women in her first trimester of pregnancy only needs to consume an additional one hundred to 300 calories each day. It’s making sure that you get enough vitamins and minerals in the food you do eat that is important for the development of a baby.

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