8 Weeks Pregnant
You’re 8 weeks pregnant — in the first trimester, and 32 weeks to go until your due date. Your baby is about the size of a kidney bean this week.
How big is your baby at 8 weeks?
Size of a
kidney bean
Length
~1.6 cm
Weight
~1 g
Last week your baby was about the size of a blueberry; this week it's grown to roughly a kidney bean.
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 8
The embryo is now moving, though you can't feel it yet. Fingers and toes are beginning to form and webbing between them is starting to recede. The tail from earlier weeks has nearly disappeared, breathing tubes extend from the throat to the developing lungs, and facial features grow more defined. About the size of a kidney bean.
Your body at 8 weeks
Common symptoms many people notice around week 8 include:
- Nausea, fatigue, and breast tenderness continue
- Bloating and mild constipation
- Occasional dizziness
- Visible veins as blood volume rises
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 8
- Add fibre and water to ease constipation
- Stand up slowly to avoid dizziness
- Your first prenatal visit and dating scan often happen around weeks 8–12
What trimester is 8 weeks?
Week 8 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 8 weeks pregnant?
- 8 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 8 weeks?
- At 8 weeks, the baby is about the size of a kidney bean, roughly 1.6 cm and around 1 g. These are averages — healthy babies vary, and your provider tracks your baby's own growth curve at scans.
- What trimester is 8 weeks?
- Week 8 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).