The Life and Lies ...

illbeyour-stumbleine:

1st Trimester 
1-4 weeks = 1 month - complete
5-8 weeks = 2 months - complete
9-13 weeks = 3 months - complete

2nd Trimester
14-17 weeks = 4 months - complete
18-21 weeks = 5 months - complete
22-26 weeks = 6 months - Incomplete

3rd Trimester 
27-30 weeks = 7 months  - Incomplete 
31-35 weeks = 8 months  - Incomplete 
36-40 weeks = 9 months  - Incomplete