Baby is the size of a raspberry
👶 Baby's development
All major organs are now laid down. The embryo moves actively, though you cannot feel it yet.
💛 How mom feels
The uterus has doubled in size. Heartburn and constipation are possible. Skin may improve or break out.
📖 Tip of the week
All vital organs have been laid down — now they begin to actively develop. The first routine ultrasound is usually done at weeks 10–14, but can be done earlier if needed. Switch to prenatal vitamins — they contain the right doses of iron, iodine, and DHA.
🔬 Detailed baby development
- All major organs have begun to form — this marks a critical milestone in organogenesis
- Fingers and toes begin to develop, though they are still webbed together
- The embryo starts making spontaneous movements, though they are too small to feel
- The eyes develop pigmented retinas and eyelids begin to form
- The tip of the nose is visible, and the upper lip and ears are taking shape
- Bones begin to harden (ossification), starting from cartilage structures
- The embryo is about 16 mm long, roughly the size of a kidney bean
🤱 What mom may feel
- Nausea may still be strong — peak hCG levels occur around weeks 8-10
- Growing uterus may cause mild pelvic cramping or a pulling sensation
- Heightened emotional sensitivity and vivid or unusual dreams
- Waistband may feel tighter even though the belly isn't visibly showing yet
- Increased vaginal discharge (leukorrhea) which is normal if clear or white
🏥 Tests and check-ups
Your first comprehensive prenatal visit typically happens between weeks 8-12. Expect a complete medical history review, physical exam, pelvic exam, Pap smear (if due), blood work (CBC, blood type, Rh factor, hepatitis B, syphilis, HIV, rubella immunity, and urinalysis). An ultrasound to confirm dates may also be performed.
💡 Tips for this week
- Eat small meals every 2-3 hours to manage nausea and maintain stable blood sugar
- Invest in comfortable, stretchy clothing as your body begins to change
- Start doing Kegel exercises to strengthen pelvic floor muscles for pregnancy and delivery
- Avoid contact with household chemicals and pesticides — choose natural cleaning products
- Get enough omega-3 fatty acids from safe fish (salmon, sardines) or supplements for brain development
❓ Frequently asked questions
When does the embryo officially become a fetus?
The embryo is reclassified as a fetus at the start of week 9 (or after 8 completed weeks). By then, all major organ systems have been initiated, and the focus shifts to growth and maturation.
Is it normal to have cramping at 8 weeks?
Mild cramping is common as the uterus stretches and grows. However, severe or one-sided cramping accompanied by bleeding should be evaluated promptly to rule out ectopic pregnancy.
Can I still work out?
Yes, moderate exercise is encouraged. ACOG recommends at least 150 minutes of moderate-intensity aerobic activity per week during pregnancy. Avoid activities with high fall or impact risk.
Why are my dreams so vivid?
Hormonal changes, frequent nighttime waking, and pregnancy-related anxiety can all contribute to more vivid and memorable dreams. This is a common experience during pregnancy.
📝 Week 8 of pregnancy: detailed guide
At week 8, all of the embryo’s major organ systems have been established. This is a significant milestone: the embryo is now transitioning towards becoming a foetus, with recognisably human proportions. It measures approximately 1.6 cm and weighs less than 1 g — about the size of a raspberry. The heart is beating at 150–170 beats per minute. Tiny fingers and toes are forming, and wrists and elbows are distinguishable. The developing genitalia are still ambiguous externally, though chromosomal sex was determined at fertilisation. The embryo is now moving spontaneously in the amniotic fluid, though these movements cannot yet be felt.
The uterus has roughly doubled in size compared to pre-pregnancy — approximately the size of an orange. Most of the physical changes you feel are internal: increased blood volume, a higher resting heart rate, and the continued effects of progesterone and oestrogen. Some women notice a visible change in the veins on their breasts and chest as blood volume increases. Round ligament discomfort — a sharp or pulling sensation on the sides of the lower abdomen — may start at this stage as the ligaments supporting the uterus begin to stretch. Wear a well-fitting, supportive bra without underwire to accommodate breast changes.
Your booking appointment with your midwife (typically offered between weeks 8 and 10 in the UK) covers a great deal of important ground. Your midwife will take a full history, check your blood pressure and urine, arrange blood tests, calculate your due date, discuss lifestyle and nutrition, and explain the first trimester combined screening test (an ultrasound and blood test offered between weeks 11 and 13 to assess chromosomal risk). You will be given a Maternity Exemption Certificate, which entitles you to free NHS prescriptions and dental treatment throughout pregnancy and for one year after the birth.
Consider switching to a comprehensive prenatal multivitamin if you have not already, in addition to your separate folic acid and vitamin D. Look for one containing iodine (important for thyroid function and foetal brain development), iron, calcium, and omega-3 DHA. Discuss the specific product with your midwife or GP, as formulations vary. Be cautious of vitamin A: supplements containing retinol (preformed vitamin A) should be avoided in pregnancy as high doses are teratogenic — beta-carotene from food sources is safe. If nausea makes swallowing capsules difficult, chewable or gummy prenatal vitamins are a practical alternative.
⚠️ When to see a doctor
- Heavy bleeding or spotting
- Severe abdominal pain or pain on one side
- Severe nausea and vomiting (unable to eat or drink)
- Fever above 38°C (100.4°F)
- Pain or burning during urination
- Dizziness or fainting
Sources
- WHO recommendations on antenatal care (2016)
- ACOG Practice Bulletins
- Williams Obstetrics, 26th Edition
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