The conversation between human and AI assistant.
[|Human|] Give me a bulleted list of the three trimesters and the corresponding weeks of pregnancy
[|AI|] - First trimester is from 0-12 weeks
- Second trimester is from 12-28 weeks
- Third trimester is from 28 weeks until birth
[|Human|] 
Give me a bulleted list of the three trimesters and the corresponding weeks of pregnancy