Question: 20 weeks is 4 months?
Answer: For example: Your baby is 20 weeks old 20/4.333=4.62, so your baby is nearly 5 months old. 20 weeks is about 4 1/2 months, which put you in the 5th month of your pregnancy. ... 4 1/2 weeks (the only month with exactly 4 weeks is Feb.), so 4 months equals about 18 weeks and 5 months equals about 22 1/2 weeks.