First Trimester Guide for Dads
The first 13 weeks are a crash course in pregnancy. Your partner's body is doing extraordinary work, most of it invisible. Here's what's actually happening week by week, and what you can do about it.
Medical Disclaimer: Content is for informational purposes only and does not replace professional medical advice. Always consult your healthcare provider.
What to know about the first trimester
What happens this trimester
Your baby goes from a cluster of cells to a 3-inch fetus with a heartbeat, fingers, toes, and early facial features. All major organs begin forming in these first 13 weeks.
Dad's role
This is your onboarding period. Learn the terminology, attend the first ultrasound, handle the logistics of choosing a provider, and be the steady presence while your partner navigates morning sickness and exhaustion.
Things to prepare
Review your health insurance coverage, start a baby budget, research prenatal vitamins together, and decide when and how to share the news. Begin looking into parental leave policies at work.
Key appointments
First prenatal visit (weeks 6-8), dating ultrasound, initial blood work, and optional genetic screening (NIPT) around weeks 10-13. Go to every one you can.
Browse by week
The Starting Line
The Spark
The Quiet Week
The Positive Test
The Circulatory System
The Facial Features
The Limb Buds
The Raspberry
The Muscle Era
The Strawberry
The Fig
The Safe Zone
The Vocal Cords
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