Our Baby Journey7 weeks pregnant
7 weeks pregnant is about 1½ months. It falls in the second month of pregnancy. You are in week 7 of 40, in the first trimester. Here is what is happening with your baby and your body this week.
Your baby is about the size of a blueberry.
Length: about 1 cm (0.4 in) from crown to rump · Weight: less than 1 g
Your baby at 7 weeks
The brain is growing quickly. Arms and legs are lengthening, and the kidneys are forming.
Your baby's brain is growing so fast this week that the head makes up a large part of the body. New brain cells are forming at a remarkable rate, and the brain is dividing into distinct regions that will handle thinking, movement, and basic body functions.
The arm buds have grown and now end in flat, paddle-shaped hand plates. The leg buds are following a few days behind. The umbilical cord has formed, linking your baby to the developing placenta, and it will carry oxygen and nutrients in and waste out. The liver is producing blood cells, and the permanent kidneys are starting to form.
The face continues to take shape: the lenses of the eyes are developing, and the nostrils, mouth, and tongue are beginning to form. Your baby's tiny body still has a small tail, which will disappear over the next couple of weeks.
Your body at 7 weeks
You may feel bloated, tired, and need to urinate more often.
Your uterus has roughly doubled in size, though you still will not look pregnant. Progesterone relaxes smooth muscle throughout your body, slowing digestion. This can lead to bloating, gas, and constipation, and can make you feel full quickly. Many people feel tired and nauseous at this stage. Some notice slightly more vaginal discharge, which is normal if it is thin, white, and mild-smelling. Occasional mild headaches and light-headedness can also happen. Standing up slowly and eating small meals regularly can help.
Your belly at week 7
In month 2 (weeks 5–8) you are not showing yet. Your uterus is slowly growing but is still tucked inside your pelvis. Bloating can make waistbands feel tighter.
Belly size and shape vary a lot depending on your build, whether this is your first pregnancy, your baby's position and the amount of amniotic fluid. At checkups your doctor or midwife may measure your fundal height to track your baby's growth, and may arrange an ultrasound if the measurement is quite different from what they expect.
Symptoms at 7 weeks pregnant
- Bloating and gas
- Constipation
- Nausea and food aversions
- Increased vaginal discharge
- Feeling light-headed when standing quickly
- Mild headaches
Checkups around week 7
Your first prenatal appointment may be coming up soon. It often takes place between about 8 and 10 weeks, but timing varies by country. It is a good time to gather your medical history, list any medicines and supplements you take, and note the first day of your last period.
Tips for week 7
- Avoid raw or undercooked meat, fish, and eggs.
- Avoid unpasteurized milk and soft cheeses made from it.
- Wash fruit and vegetables well.
Common symptoms in the first trimester
The first trimester runs from week 1 to week 13. It is when your baby's major organs, spine and heart form, and when many people feel the most tired and nauseous. Not everyone has every symptom, and it is normal for symptoms to come and go. Common ones include:
- Nausea and vomiting (morning sickness), which can happen at any time of day
- Tiredness and needing more sleep
- Tender, swollen breasts
- Needing to urinate more often
- Food aversions or cravings and a metallic taste
- Mood swings
- Light spotting around implantation
Read the full first trimester guide.
When to call your doctor or midwife
Contact your healthcare provider or maternity unit straight away, or get emergency care, if you have:
- Vaginal bleeding
- Severe or persistent abdominal pain or cramping
- A severe headache, blurred vision, or sudden swelling of your face, hands or feet
- A fever of 38°C (100.4°F) or higher
- Fluid leaking from your vagina
- Severe vomiting where you cannot keep fluids down
- Your baby moving less than usual or a change in their pattern of movements (later in pregnancy)
- Regular contractions before 37 weeks
- Pain or burning when you urinate
- Feeling very low, anxious, or having thoughts of harming yourself
Have a question about week 7?
Ask our AI pregnancy assistant about symptoms, nutrition, scans or anything else on your mind this week.
Frequently asked questions
How big is my baby at 7 weeks pregnant?
At 7 weeks pregnant, your baby is about the size of a blueberry. That is about 1 cm (0.4 in) from crown to rump, weighing less than 1 g.
How big is my belly at week 7 of pregnancy?
In month 2 (weeks 5–8) you are not showing yet. Your uterus is slowly growing but is still tucked inside your pelvis. Bloating can make waistbands feel tighter. Bump size, shape and when you start to show vary a lot from person to person.
Is it normal to lose pregnancy symptoms at 7 weeks?
Symptoms often come and go, and it is common to have good days and bad days. A sudden easing of nausea or breast tenderness does not on its own mean there is a problem. If you also have bleeding, cramping, or you are worried, contact your doctor or midwife, who can advise whether you need to be checked.
Can I exercise at 7 weeks pregnant?
In a healthy pregnancy, regular moderate exercise is encouraged, and you can usually continue activities you already do. Walking, swimming, and stationary cycling are good options. Avoid contact sports and activities with a high risk of falling, and stop if you feel dizzy or unwell. Talk to your doctor or midwife if you have any complications.
How can I relieve constipation in early pregnancy?
Eat plenty of fiber from fruit, vegetables, whole grains, and legumes, and drink water regularly through the day. Gentle activity such as walking helps keep things moving. Iron supplements can make constipation worse. If it continues, ask your doctor, midwife, or pharmacist about pregnancy-safe treatments rather than using laxatives on your own.
What trimester is 7 weeks pregnant?
Week 7 is in the first trimester, which covers weeks 1 to 13.
How many months is 7 weeks pregnant?
7 weeks pregnant is about 1½ months. It falls in the second month of pregnancy. The second month covers weeks 5 to 8. Pregnancy is about 40 weeks, or roughly 9 months, counted from the first day of your last period.
This page is general educational information and is not a substitute for advice from your doctor or midwife. Every pregnancy is different, and baby sizes are approximate averages. Last updated 2026-11-07. See our medical disclaimer.