27 weeks in months: how far along you are
27 weeks pregnant is month 6 of pregnancy, in the second trimester. In calendar terms, 27 weeks is about 6.2 calendar months (6 months and 1 week). You’re 68% of the way to a 40-week due date, with 13 weeks to go.
A calendar calculation, not medical advice. Your provider’s dating ultrasound is the reference for your due date. Nothing you type leaves this page.
27 weeks at a glance
| Measure | At 27 weeks |
|---|---|
| Pregnancy month | Month 6 (weeks 23–27) |
| Trimester | Second |
| Calendar months | 6.2 (6 months and 1 week) |
| Counting 4-week months | 6.8 |
| Days pregnant | 189 |
| Weeks left until 40 | 13 |
Pregnancy months vs. calendar months at 27 weeks
Pregnancy months are counted in two ways. Most US pregnancy charts group the 40 weeks into nine “pregnancy months” of four or five weeks each, which puts week 27 in month 6. A calendar month is about 4.35 weeks (30.44 days), so 27 weeks of calendar time is 6.2 months. Both answers are correct for what they measure; your provider will track the pregnancy in weeks.
What’s usually on the calendar around week 27
- You’re in the second trimester, which runs from week 14 through 27 weeks and 6 days. (source)
- In a healthy pregnancy, prenatal visits are usually about every four weeks until week 28. (source)
- The glucose screening test for gestational diabetes is usually done around weeks 24 to 28. (source)
- The CDC recommends the Tdap (whooping cough) vaccine between 27 and 36 weeks of each pregnancy. (source)
Every pregnancy is different, and your provider’s schedule comes first.
Weeks around week 27
| Week | Pregnancy month | Calendar months | Trimester |
|---|---|---|---|
| 25 weeks | Month 6 | 5.7 | Second |
| 26 weeks | Month 6 | 6.0 | Second |
| 27 weeks | Month 6 | 6.2 | Second |
| 28 weeks | Month 7 | 6.4 | Third |
| 29 weeks | Month 7 | 6.7 | Third |
See every week from 1 to 42 on the pregnancy weeks to months chart.
Questions
How many months is 27 weeks?
About 6.2 calendar months, or month 6 on a standard pregnancy chart.
Is 27 weeks pregnant 6 months?
Yes, on both counts: week 27 falls in month 6 of a standard pregnancy chart, and it is 6.2 months in calendar time.
How do you convert 27 weeks to months?
Divide the days by the average calendar month: 27 × 7 = 189 days, and 189 ÷ 30.44 = 6.2 months (6 months and 1 week). On a pregnancy chart, week 27 is month 6.
How many days is 27 weeks pregnant?
189 days, counted from the first day of your last menstrual period.
What trimester is 27 weeks?
The second trimester.
27 weeks is how many months on a calendar?
27 weeks in months is about 6.2 calendar months. Counted in 4-week blocks instead, it’s 6.8.
Track every week on paper
The printable pregnancy planner has this chart, trimester calendars, an appointment log and a 40-week countdown.
Sources
- ACOG, “How Your Fetus Grows During Pregnancy”
- Cleveland Clinic, “Your Prenatal Appointment Schedule”
- CDC, on the Tdap vaccine during pregnancy
This page explains calendar math. It isn’t medical advice; ask your provider about your own pregnancy.