7 Weeks Pregnant
You’re 7 weeks pregnant — in the first trimester, and 33 weeks to go until your due date. Your baby is about the size of a blueberry this week.
How big is your baby at 7 weeks?
Size of a
blueberry
Length
~1.3 cm
Weight
—
Last week your baby was about the size of a lentil; this week it's grown to roughly a blueberry.
Sizes are averages from standard fetal-growth references. Every baby grows at its own pace — your provider tracks yours at scans.
Baby development at week 7
The embryo has roughly doubled in size since last week. The brain is growing rapidly and developing distinct regions, while hands and feet emerge as paddle-like structures. Kidneys are nearly ready to begin their work, and the umbilical cord is now clearly established, ferrying nutrients and oxygen from the developing placenta. About the size of a blueberry.
Your body at 7 weeks
Common symptoms many people notice around week 7 include:
- Peak early-pregnancy fatigue for many
- Ongoing nausea
- Excess saliva
- Mild cramping as the uterus grows
Symptoms vary enormously from person to person and pregnancy to pregnancy. Not having a symptom on this list is just as normal as having it.
Tips for week 7
- Keep snacks by the bed for morning nausea
- Choose bland, easy foods on rough days — calories matter more than perfection
- Gentle movement like walking can ease symptoms and boost mood
What trimester is 7 weeks?
Week 7 falls in the first trimester. As a quick map: the first trimester runs weeks 1–13, the second covers weeks 14–27, and the third is week 28 through birth (a due date is set at 40 weeks). Want your own dates? Our Pregnancy Due Date Calculator shows your due date and exactly how far along you are today.
The first trimester (weeks 1–13) is when the baby's major organs and body systems form, and when pregnancy symptoms like nausea and fatigue are usually strongest. It's also when most prenatal care begins — the dating scan, early bloodwork, and (if you choose) genetic screening all happen in this window.
Frequently asked questions
- How many months is 7 weeks pregnant?
- 7 weeks pregnant is about 2 months. Pregnancy months don't divide evenly into 4-week blocks, so week-to-month conversions are approximate — most providers track pregnancy by week, not month.
- How big is the baby at 7 weeks?
- At 7 weeks, the baby is about the size of a blueberry, roughly 1.3 cm. These are averages — healthy babies vary, and your provider tracks your baby's own growth curve at scans.
- What trimester is 7 weeks?
- Week 7 is in the first trimester. The first trimester is weeks 1–13, the second is weeks 14–27, and the third is weeks 28 to birth (around week 40).