Week 6of 40
Trimester 1
from 5 full weeks + 0 days to 5 full weeks + 6 days
The fetus
0.5 cm
Size of a lentil
- The heart is now beating regularly at about 110 beats per minute.
- The face is beginning to form with pits where the eyes and ears will be.
- The arm and leg buds are growing and becoming more distinct.
- The embryo is about 4-5 mm long.
Your body
Physical changes
- Blood volume is increasing, which can cause dizziness and fatigue.
- The uterus has grown to about the size of a plum.
Common symptoms
- Nausea may become stronger this week.
- Tender and swollen breasts.
- Increased saliva production and a metallic taste in the mouth.
- Constipation due to the hormone progesterone.
Emotional changes
- It may feel surreal to be pregnant, especially when it is not visible from the outside yet.
Good to know
- Book a registration appointment with the midwife if it hasn't been done yet.
- Avoid strong scents if they trigger nausea.
- Drink plenty of water — at least 1.5 liters per day.
Appointments & check-ups
- The registration appointment with the midwife usually takes place around weeks 7-10.
Important
- Contact your healthcare provider if you have heavy bleeding, severe abdominal pain, or cannot keep any fluids down at all.
Food & nutrition
Good to eat
- Protein-rich snacks such as eggs, yogurt and nuts.
- Fiber-rich foods that help with constipation.
- Citrus fruits and berries rich in vitamin C.
Be aware of
- Avoid unpasteurized cheeses such as brie, camembert and white-mold goat cheese.
Avoid
- Alcohol and tobacco.
- Raw or undercooked eggs — risk of salmonella.
Supplements
- Folic acid 400 micrograms daily.
- Possibly vitamin D, especially if you live in a northern climate during the winter months.
Exercise
Continue exercising as usual if you can manage it. Nausea and fatigue can make it difficult — a short walk is perfectly fine.
If you feel nauseous, movement can actually help. Try a short walk and see how you feel.
Suggested activities
- Walking — fresh air can ease nausea
- Swimming
- Gentle yoga
Sources
The content on this website is based on information from 1177.se and the Swedish Food Agency. It does not replace professional medical advice. Always contact your midwife or doctor with questions about your pregnancy.