Week 18 - Ultrasounds

Bobo Team  •  Pregnancy  •  2 min read

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Congratulations on reaching week 18 of this extraordinary journey with your partner!

Bobo will be sending you and your partner weekly updates on your pregnancy progress, child development, and Canadian based information up to the age of two. Here's

what you can expect during this stage of your pregnancy.

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Your Baby's Development

At 18 weeks into your partner's pregnancy, your baby is about the size of a cucumber. Their development is progressing, with their body becoming more symmetrical. Notably, their ears have moved to their final position on the sides of their head, enhancing their overall appearance. Furthermore, their myelin, a protective coating for their future nerves, is beginning to form, ensuring their neurological health. If your baby is female, her reproductive system is also advancing, with her fallopian tubes and uterus now in their correct positions.​

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Partner's Role in Healthcare Decisions: Diagnostic Tests

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In addition to screening tests, there are diagnostic procedures available for more precise assessments.

• Cordocentesis: Conducted after week 18 of pregnancy. This test is available for women at elevated risk to confirm a chromosomal abnormality. This procedure involves inserting a hollow needle through the mother's abdomen into the blood vessels of the umbilical cord near the placenta to withdraw a sample of the baby's blood. Cordocentesis is conducted later in pregnancy because the baby's blood vessels must be sufficiently developed to accommodate the needle insertion.

• Fetal Echocardiography: Conducted around 18 weeks of pregnancy. This is a non-invasive procedure utilizing ultrasound waves, performed for women at increased risk of fetal heart defects. This method meticulously examines the baby's heart, enabling early diagnosis of any abnormalities. Timely detection facilitates swift medical interventions post-birth.

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As partners in this journey, it's crucial to discuss these healthcare considerations together and make informed decisions based on the guidance of healthcare professionals. Your active participation and support is necessary as you navigate the complexities of pregnancy and parenthood.

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Disclaimer: All screening information is sourced from the Government of Manitoba website. However, due to limited resources and availability, not all screenings and diagnostic tests may be conducted.

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Physical and Emotional Change

As the pregnancy progresses, your partner may continue to experience a variety of symptoms such as backaches, leg cramps, or nasal congestion. Be attentive to her needs and offer comfort and support as she navigates these changes. Your presence and understanding can provide her with much-needed comfort and reassurance during this time.

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Supporting Your Partner

During this week, show your support for your partner by actively engaging in the preparation for your baby's arrival. Start by assembling your baby registry and researching essential baby items together. By taking proactive steps to plan and organize, you can alleviate stress and ensure that you have everything you need when your little one arrives.

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Sources:

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• Manitoba Parent Zone. ( n.d.). Prenatal Test & Screnning. http://www.manitobaparentzone.ca/becoming-a-parent/early-stages-pregnancy/prenatal-tests-screening.html#:~:text=Ultrasound%20is%20usually%20done%20just,throughout%20the%20pregnancy%20if%20needed.

• Mayo Clinic. (2022, June 03). Fetal Development: The 2nd Trimester. Mayo Clinic. (2022, June 03). https://www.mayoclinic.org/healthy-lifestyle/pregnancy-week-by-week/in-depth/fetal-development/art-20046151

• MedlinePlus. (2023, August 23) Fetal Development. https://medlineplus.gov/ency/article/002398.htm

• American College of Obstetrics and Gynecologists. (2024, January). How Your Fetus Grows During Pregnancy. https://www.acog.org/womens-health/faqs/how-your-fetus-grows-during-pregnancy

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Articles have been medically reviewed by an obstetrician gynecologist. This information is provided for educational and entertainment purposes only. We do not accept any responsibility for any liability, loss or risk, personal or otherwise, incurred as a consequence, directly or indirectly, from any information or advice contained here.