See exactly where you are in your pregnancy journey with personalized trimester dates and milestones.
Frequently Asked Questions
The first trimester spans weeks 1-12, the second trimester weeks 13-27, and the third trimester weeks 28-40. These divisions are based on fetal development milestones and are standardized by ACOG (American College of Obstetricians and Gynecologists).
This varies for every person. Many find the first trimester challenging due to morning sickness and fatigue, while others find the third trimester most difficult due to the baby's size causing discomfort. The second trimester is generally considered the most comfortable.
First trimester: heartbeat detected (week 6), all organs forming. Second trimester: first movements felt, anatomy scan, gender can be determined. Third trimester: baby viable if born early, lungs maturing, baby settles into birth position.
The trimester boundaries are standardized, but your specific dates depend on your estimated due date, which may be adjusted based on ultrasound measurements. The important thing is the progression of development, not exact dates.