3 Weeks Pregnant: Baby Development, Symptoms & Signs

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Congratulations! At 3 weeks pregnant, you’ve officially conceived and are in the first month of your pregnancy. Although it may take a few weeks for a pregnancy test to confirm your exciting news, this week marks the beginning of your journey.

Your Baby at Week 3

Baby on board! Your embryo is currently a tiny cluster of cells that are rapidly multiplying. At this stage, it’s about the size of a pinhead.

The journey begins: It takes approximately four days for your fertilized egg—now referred to as a blastocyst—to travel to your uterus, followed by another two to three days for implantation to occur.

Boy or girl? Although you won’t find out if you’re having a baby boy or girl for another 14 weeks, the sex of your baby is determined at the moment of fertilization.

How big is my baby at 3 weeks? At this early stage, your baby is still very small, but the development is already in full swing!

As your body adjusts to this new phase, you may notice some changes. Surging hormone levels can lead to an increased sense of smell, one of the earliest signs of pregnancy.

Common Symptoms

While some women experience noticeable symptoms right away, others may not notice changes until later. Early signs can include:

  • Heightened sense of smell: Many women report a more acute sense of smell during the early weeks of pregnancy.
  • Fatigue: Your body is working overtime, which can leave you feeling more tired than usual.
  • Mild cramping: As your body adjusts, you might feel some mild cramping as the embryo implants.

If you’re considering at-home insemination, companies like MakeAMom offer a unique reusable option that simplifies the process. For a better understanding of how at-home insemination works, check out this guide. Additionally, if you’re looking to connect with others on a similar journey, consider joining the MakeAMom Facebook group for support and resources.

Helpful Resources

For further reading on pregnancy and related health topics, you can visit WomensHealth.gov, which offers authoritative information on pregnancy health. If you want to learn more about the common challenges of home insemination, this article provides helpful insights.

If you’re dealing with thumb-sucking later on, you might find our post on how to help your little one stop thumb-sucking useful.

To Summarize:

At 3 weeks pregnant, your pregnancy journey has just begun. Your embryo is growing rapidly, and you may notice some early signs of pregnancy, such as fatigue and a heightened sense of smell. As you navigate through this exciting time, consider exploring resources available through MakeAMom and other authoritative platforms. Remember, you’re not alone; support is just a click away!