First Trimester of Pregnancy
Weeks 1-13: The beginning of your pregnancy journey. A time of rapid development and major changes.
What to Expect
- •Confirming your pregnancy
- •Morning sickness and fatigue
- •Your baby's organs begin forming
- •First prenatal appointments
- •Increased emotions and mood changes
Key Milestones
- •Week 4: Positive pregnancy test
- •Week 5-6: Baby's heart starts beating
- •Week 8: Baby is now called a fetus
- •Week 12: Risk of miscarriage decreases significantly
- •Week 13: End of first trimester!
🛍️ Must-Haves for Trimester 1
Comfort and preparation products other expecting parents find helpful at this stage. These are convenience picks, not medical advice — always follow your provider's guidance.
Prenatal Vitamins (with Folate & DHA)
Daily folate, iron and DHA support that doctors recommend before and throughout pregnancy.
Check Price on Amazon →Ginger Chews & Anti-Nausea Drops
A gentle, drug-free favorite many moms keep on hand for queasy mornings.
Check Price on Amazon →Sea-Bands Acupressure Wristbands
Reusable wrist bands many expecting moms use for everyday queasiness and travel.
Check Price on Amazon →What to Expect When You're Expecting
The classic week-by-week guide trusted by millions of expecting parents.
Check Price on Amazon →Amazon Associates Disclosure: As an Amazon Associate, we earn from qualifying purchases at no extra cost to you. These recommendations are editorially chosen comfort and preparation products and are not medical advice.
Common First Trimester Symptoms
Morning Sickness
Nausea and vomiting, especially in the morning
Fatigue
Extreme tiredness due to hormonal changes
Food Cravings
Strange food preferences and aversions
Mood Swings
Emotional ups and downs
Frequent Urination
Need to pee more often
Breast Tenderness
Sore and swollen breasts
First Trimester Nutrition
Focus on:
- Folic acid (400-800 mcg daily) for neural tube development
- Iron-rich foods to support increased blood volume
- Small, frequent meals to combat nausea
- Staying hydrated with water throughout the day
- Avoiding raw or undercooked foods
Foods to avoid: Raw fish, undercooked meat, unpasteurized dairy, deli meats, high-mercury fish, raw eggs, and excessive caffeine (limit to 200mg/day).
Browse First Trimester Week by Week
First Trimester Resources
First Trimester Nutrition
Foods that help with nausea and support baby's development
First Trimester Symptoms
What to expect and how to find relief
Prenatal Tests
Important first trimester screenings
First Trimester Checklist
Essential tasks for weeks 1-13
Morning Sickness Guide
Complete relief strategies
Safe Exercises
Stay active in your first trimester
Explore All Trimesters
Track Your Pregnancy Week by Week
Get detailed information for each week of your first trimester