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How your fetus grows during pregnancy.
American College of Obstetricians and Gynecologists.https://www.acog.org/womens-health/faqs/how-your-fetus-grows-during-pregnancyOpens a new window[Accessed May 2024]
Cleveland Clinic.
Yolk Sac.https://my.clevelandclinic.org/health/body/22341-yolk-sacOpens a new window[Accessed May 2024]
FDA.
Home use tests: Pregnancy.
U.S. Food and Drug Administration.https://www.fda.gov/medical-devices/home-use-tests/pregnancyOpens a new window[Accessed May 2024]
Mayo Clinic.
Fetal development: The 1st trimester.https://www.mayoclinic.org/healthy-lifestyle/pregnancy-week-by-week/in-depth/prenatal-care/art-20045302Opens a new window[Accessed May 2024]
Mayo Clinic.
Fetal development.https://medlineplus.gov/ency/article/002398.htmOpens a new window[Accessed May 2024]
Merck Manual.
Stages of Development of the Fetus.https://www.merckmanuals.com/home/women-s-health-issues/normal-pregnancy/stages-of-development-of-the-fetusOpens a new window[Accessed May 2024]
NIH.
What are some common signs of pregnancy?
