First Trimester Pregnancy Guide
The first trimester includes the earliest stage of pregnancy, from week 1 through week 13. During this time, many people experience major hormonal changes and early pregnancy symptoms.
Common first trimester symptoms
Symptoms may include a missed period, nausea, breast tenderness, fatigue, frequent urination, mood changes, and food cravings or aversions.
Some people experience strong symptoms while others have only mild ones — both can be normal.
What to do in the first trimester
Schedule a prenatal appointment, start or continue a prenatal vitamin, avoid alcohol and smoking, ask your provider about safe medications, stay hydrated, rest when possible, and discuss new symptoms with your provider.
Use a trimester tracker
A trimester tracker can estimate your current pregnancy week and trimester from your LMP or due date so you always know which stage you're in.