First trimester
Early beginnings
Dating begins before conception, so these earliest weeks can feel more like preparation than pregnancy.
Week-by-week field guide
Weeks are useful for orientation, appointments, and planning. They are not a scorecard. Choose a week to see what may matter at this stage and what to ask next.

How to use this guide
Pregnancy dating can change as more information becomes available. If you are unsure, choose the closest week and treat the page as a planning aid.
Build a weekly plan →First trimester
Dating begins before conception, so these earliest weeks can feel more like preparation than pregnancy.
First trimester
Early symptoms and early questions can arrive quickly, but experiences vary widely.
First trimester
This stage often brings early testing, a fuller health history, and new decisions.
Second trimester
The second trimester may change how pregnancy feels, but there is no universal burst of energy or relief.
Second trimester
This can be a visually and emotionally significant stage, with new information and new questions arriving together.
Second trimester
Practical planning becomes more useful as the third trimester approaches.
Third trimester
The focus often shifts toward birth preparation, comfort, monitoring, and concrete support.
Third trimester
Plans become more concrete, while flexibility becomes more important.
Third trimester
This stage is about recognizing change, staying connected to care, and reducing avoidable logistics.
Late pregnancy
The final stretch can feel physically intense and emotionally long, especially when timing is uncertain.
A note in the margin
Symptoms, movement, measurements, appointments, and tests vary. A week page cannot tell you whether your pregnancy is progressing normally.Know the urgent warning signs →