Week 13 of Pregnancy

    First trimester

    Week 12Week 14

    Baby is

    about the size of a peach

    2.9 inches · 0.8 oz

    Baby this week

    • Fingerprints are forming on tiny fingertips
    • Vocal cords are developing
    • Baby can make sucking motions
    • Intestines are moving into the abdomen from the umbilical cord

    You this week

    • Nausea may be starting to ease for many
    • Energy levels beginning to improve
    • Breast tenderness may persist
    • Round ligament pain (sharp twinges on sides of belly)
    • Occasional dizziness or lightheadedness

    This week's tips

    • Schedule your second trimester screening ultrasound if you haven't already—many do this between weeks 13-14
    • Start thinking about disclosing your pregnancy at work if you haven't yet; you're entering a safer window
    • Stay hydrated and eat regular small meals to keep energy steady
    • Wear a supportive bra to ease breast tenderness
    • Move gently and often—short walks can ease round ligament discomfort

    Looking ahead

    Welcome to the second trimester! Many experience a significant energy boost in the coming weeks, along with decreasing nausea. Your belly will start showing more noticeably, making pregnancy feel more real.

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