Week 9of 40
Trimester 1
from 8 full weeks + 0 days to 8 full weeks + 6 days
The fetus
2.3 cm2 grams
Size of a grape
- The embryo is now called a fetus and is about 2-3 cm long.
- The face is becoming more defined — the nose, mouth and ears are clearly visible.
- All vital organs are in place and continue to mature.
- The tail that existed in the embryo stage has now disappeared.
Your body
Physical changes
- The uterus is now about the size of a tennis ball.
- The gums may become swollen and bleed more easily — known as pregnancy gingivitis.
Common symptoms
- Nausea may still be bothersome but often begins to subside.
- Sensitive gums — brush gently with a soft toothbrush.
- Fatigue and a need for extra sleep.
- Increased appetite in some.
Good to know
- Book a dental appointment — pregnant women are entitled to free dental care in many regions.
- Brush your teeth gently and floss daily.
- Talk to your midwife if you are considering prenatal screening — the combined test is done in weeks 11-14.
Appointments & check-ups
- Consider booking an appointment for a combined screening test (ultrasound and blood test) if you want prenatal diagnostics.
Food & nutrition
Good to eat
- Iron-rich foods such as red meat, beans, lentils and spinach.
- Vitamin C-rich foods (bell pepper, orange) alongside iron-rich food for better absorption.
Be aware of
- Cheese made from unpasteurized milk should be avoided — risk of listeria.
- Hard cheese and pasteurized cheese are safe.
Avoid
- Unpasteurized milk and mold-ripened cheeses.
- Alcohol.
Supplements
- Folic acid 400 micrograms daily.
- Iron supplements if blood tests show low levels.
Exercise
If nausea makes it hard to exercise, do not be hard on yourself. All movement counts — even a ten-minute walk.
Nausea may still affect motivation. Focus on moving a little each day rather than long sessions.
Suggested activities
- Walking at your own pace
- Swimming or water aerobics
- Light strength training
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.