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Medical disclaimer: Content on this site is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional for diagnosis and treatment.

    ← All 40 weeks
    Trimester 1

    Pregnancy Week 3

    Real, evidence-based guidance for exactly where you are right now.

    This page provides general, educational information based on published clinical guidelines (ACOG, WHO, RCOG, CDC, and others — see References below). It is not personalized medical advice and does not replace your own doctor's guidance for your specific pregnancy.

    Baby Development

    If conception has happened, a single fertilized cell is now dividing rapidly and traveling toward the uterus — still far too early for any real pregnancy test to detect anything.

    Your Body This Week

    Most people notice nothing different yet. This is genuinely normal — real, detectable hormonal changes haven't built up yet.

    Diet

    Continue a varied, real-food diet, avoiding alcohol if there's a real chance you've conceived.

    Supplements

    Continue your folic-acid-containing prenatal vitamin.¹

    Tests

    Too early for a reliable pregnancy test.

    Vaccinations

    No pregnancy-specific vaccines yet.

    Exercise

    Continue your normal, current activity level.

    Red Flags — When to Call Your Doctor

    Not applicable this week.

    Doctor Visits

    No visit needed yet.

    Mental Health

    The wait to find out is real and can be genuinely stressful — this is worth naming rather than pushing through silently.

    Frequently Asked Questions

    Can I feel implantation happening?

    Most people feel nothing at all. A minority notice very light spotting or mild cramping around implantation (roughly a week from now) — this is a real, recognized pattern, but its absence is equally normal.

    Week 2Week 4

    References

    1. 1. American College of Obstetricians and Gynecologists. Nutrition During Pregnancy. ACOG Patient FAQ.
    2. 2. American College of Obstetricians and Gynecologists. How to Stay Fit and Healthy During Pregnancy. ACOG Patient FAQ.
    3. 3. American College of Obstetricians and Gynecologists. Morning Sickness. ACOG Patient FAQ.
    4. 4. American College of Obstetricians and Gynecologists. Prenatal Care. ACOG Patient FAQ; ACOG Clinical Consensus No. 8: Tailored Prenatal Care Delivery for Pregnant Individuals (2025).
    5. 5. American College of Obstetricians and Gynecologists. Maternal Immunization Schedule; Committee Statement No. 26: Maternal Immunizations (2026).

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    CARENYX Nutrition+Build My Healthy PlateHydration CentreCARENYX MOVE — Walking Programme← Back to the Full Pregnancy Journey