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It's often during the first trimester that pregnant people encounter some of the most challenging pregnancy symptoms. This means that although it's an exciting time that's crucial for the development of the fetus, it can also be tough.
We've written this guide to help you learn about the most common first-trimester symptoms. We'll also cover some top tips, and answer some of the most-asked questions that parents-to-be have about early pregnancy.
The first day of your last period marks the first day of the first trimester. It ends on the last day of the 12th week of your pregnancy.
During the first trimester of pregnancy, a lot of changes take place in a person's body.
The fertilized egg implants itself in the uterus, and the placenta starts to develop. Hormones like progesterone and estrogen begin to increase, causing symptoms like fatigue, nausea, and breast tenderness (we'll cover those next). The baby's major organs and body systems also start to form.
Throughout the first trimester, lots of changes happen. While each pregnancy is unique, lots of people experience the same set of pregnancy symptoms. These are caused by both hormonal and physical changes, and include:
Although you'll experience lots of physical symptoms and changes in the first trimester, you might not notice a baby bump developing until around week 10.
While some people may see a visible pregnancy bump by the end of their first trimester, others may not. It just depends on your body and your baby's development. It's worth keeping in mind that everyone's pregnancy experience is different.
During the first trimester fetal development starts with the egg being fertilized and ends when the fetus has all its organs, and its body systems are developing. By the end of the first trimester, the fetus is about the size of a peach!
The truth is, some of the symptoms you experience during the first trimester can be unpleasant, but all the common symptoms of early pregnancy that we've mentioned above are normal and act as signals that your first trimester is going to plan.
On the other hand, you may feel great and not experience these common first-trimester symptoms. If that's you, don't worry. If your medical appointments confirm that everything is ok with your pregnancy, then there's no need to worry.
Some symptoms can sometimes be warning signs during pregnancy, and you should seek medical advice if you experience any of the following:
It's important to be cautious during the first trimester of pregnancy and avoid certain things that could potentially harm the developing fetus, such as:
Individual circumstances may require unique precautions, so it's always best to consult with your healthcare provider for personalized advice based on your specific situation.
The first trimester finishes at the end of the 12th week of pregnancy. After that point, you're in the second trimester.
We asked our Instagram followers what the first trimester felt like for them, and here's what they told us:
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