Question: 17 weeks how many months in pregnancy?
Answer: Your 17-week fetus is about 5.1 inches long and weighs about 5.9 ounces. 17 Weeks Pregnant Is How Many Months? At 17 weeks pregnant, you're four months pregnant. But here's the catch: Pregnancy is technically longer than nine months: It's 40 weeks long, and if you assign four weeks to a month, that's 10 months long.