A gentle week-by-week guide from bump to baby.

At Shoreline, we believe every pregnancy is a unique journey — filled with anticipation, change, and countless small milestones. This guide was created to walk beside you, week by week, offering clarity, comfort, and support. Whether you’re preparing for your first visit, navigating new symptoms, or welcoming your baby earthside, we’re here at every step.

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First Trimester: Weeks 1-13

A quick guide to what may happen during the first trimester of pregnancy.

Weeks 1-4
  • Pregnancy dating starts from the first day of the last period.
  • Conception often happens around week 3.
  • Implantation may begin around week 4.
  • You may not feel pregnant yet, though a missed period can be an early sign.
Weeks 5-8
  • Pregnancy hormones rise quickly.
  • Fatigue, nausea, breast tenderness, and frequent urination are common.
  • The brain, spinal cord, heart, arms, and legs begin developing.
  • Early facial features, fingers, eyes, and ears start forming.
Weeks 9-13
  • Fingers, toes, eyelids, and fingernails continue developing.
  • Bones begin to harden.
  • The fetus may make small movements, usually too early to feel.
  • Your care team may discuss screening tests or ultrasound timing.

This is general education only. Contact a healthcare professional for
bleeding, severe pain, fever, fainting, or symptoms that worry you.