10/20/2026
The first trimester lasts through the 13th week of pregnancy.
What's happening??
- You may start noticing signs of pregnancy, such as nausea and tender breasts.
- Fetal development begins when the egg is fertilized, and by the end of the 13th week, all the organs and body systems are developing.
What's next?? Find a pregnancy care provider as soon as you know you’re pregnant.