Pregnancy Month 7

Pregnancy month 7 — the third trimester begins — covers roughly weeks 28 to 31 of pregnancy, in the third trimester. Months are an approximate grouping: weeks remain the precise measure.

Weeks (approx.)
28 to 31
Trimester
Third
Month
7 of 9
Progress by the end
80%
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The day your last period started — not the day it ended.

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From the first day of one period to the day before the next. Most cycles are 21–35 days.

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Overview of month 7

Month 7 covers roughly weeks 28 to 31 and opens the third trimester. The focus shifts to growth and getting ready for birth, and appointments often become more frequent.

Weeks in pregnancy month 7

WeekWhat typically happens
28 weeksThe third trimester begins; visits often become more frequent.
29 weeksMovements may feel more like rolls and stretches as space shrinks.
30 weeksTiredness, heartburn and broken sleep are common around now.
31 weeksThe baby is gaining weight quickly and practising breathing movements.

Your baby in month 7

The baby can blink, has eyelashes and is building fat quickly. The brain is forming more folds, and the baby practises breathing movements. By the end of the month the baby weighs around 1.5 kg.

Your body in month 7

Tiredness often returns. Back pain, heartburn, shortness of breath and needing the bathroom more often are common.

Care during month 7

In many care systems visits become every two weeks from 28 weeks. Certain vaccinations and blood tests are commonly scheduled early in the third trimester. Get to know your baby’s pattern of movements. Schedules vary between countries and providers; your own care team will tell you what applies to you.

Why pregnancy months are approximate

A 40-week pregnancy does not divide evenly into nine calendar months: each calendar month is about 4.3 weeks, so nine months is roughly 39 weeks, and the due date falls a week or so later. Different books and apps therefore group weeks into months slightly differently. This site uses the common grouping in which month 7 spans about weeks 28 to 31. When you talk to a healthcare professional, you will hear weeks and days — for example “29 weeks and 2 days” — because that is far more precise. To see exactly where you are, use the Pregnancy Week Calculator.

Pregnancy weeks to months
Pregnancy monthWeeks pregnant (completed)Trimester
Month 1Weeks 1–4First
Month 25 to 8 weeksFirst
Month 39 to 13 weeksFirst
Month 414 to 17 weeksSecond
Month 518 to 22 weeksSecond
Month 623 to 27 weeksSecond
Month 728 to 31 weeksThird
Month 832 to 35 weeksThird
Month 936 to 40 weeksThird

Frequently asked questions

How many weeks is 7 months pregnant?

Month 7 is roughly 28 to 31 weeks pregnant — the first month of the third trimester.

How many weeks is month 7 of pregnancy?

Month 7 covers roughly weeks 28 to 31 of pregnancy. Different sources group weeks into months slightly differently, which is why weeks are the preferred measure.

Which trimester is pregnancy month 7?

Month 7 is in the third trimester.

Calculations reviewed · page updated October 5, 2026.