Your pregnancy and baby guide
You and your baby at 7 weeks pregnant
Open all pages about Your pregnancy and baby guide
- Secrets to success
- Am I pregnant?
- Early days
- Week by week
- Preparing for the birth
- Work out your due date
- Tests scans and checks
- Your pregnancy (antenatal) care
- Your health and wellbeing
- Existing health problems
- Common pregnancy ailments
- Pregnancy-induced conditions
Labour and birth
- The start of labour
- The birth
- Emotions and worries
- Premature babies
- How to breastfeed
- Breastfeeding problems
- Lifestyle and breastfeeding
- Bottle feeding
- Newborn screening tests
- Newborn essentials
- New parents
- New mums
- Twins and multiples
Babies and toddlers
- Weaning and solid foods
- Baby health and care
- Spotting signs of serious illness
- Reflux in babies
- How to take a baby's temperature
- Reducing the risk of SIDS
- Treating a high temperature
- Sleep problems in children
- Coughs, colds and ear infections
- Diarrhoea and vomiting
- Infectious illnesses
- Children's medicines
- Looking after a sick child
- Serious conditions and special needs
- Constipation in young children
- Your baby's height and weight
- Baby health and development reviews
- Leg and foot problems in children
- Learning, play and behaviour
- Safety and accidents
Your baby at 7 weeks
By 7 weeks, the embryo has grown to about 10mm long from head to bottom. This measurement is called the crown-rump length.
The brain is growing rapidly and this results in the head growing faster than the rest of the body. The embryo has a large forehead, and the eyes and ears continue to develop.
The inner ears start to develop, but the outer ears on the sides of the head will not appear for a couple more weeks.
The limb buds start to form cartilage, which will develop into the bones of the legs and arms. The arm buds get longer and the ends flatten out – these will become the hands.
Nerve cells continue to multiply and develop as the brain and spinal cord (the nervous system) starts to take shape.
You at 7 weeks
Your womb has grown to the size of a lemon by the time you're around 7 or 8 weeks pregnant.
You're probably feeling tired. Your breasts might feel sore and enlarged, and you may need to pee more often than usual.
Some pregnant women start to feel sick or tired, or have other minor pregnancy problems for a few weeks around this time.
For most women, feelings of nausea and vomiting (morning sickness) start to improve by the time they're around 14 weeks pregnant.
Some infections can harm a pregnancy. It's important to let your doctor or midwife know if you think you may have an infection so they can give you the right care as early as possible.
You may have bleeding or sore gums when you're pregnant. Good mouth hygiene and regular dental care (free to pregnant women) to keep your teeth and gums as healthy as possible is the best way to avoid or care for gum problems.
Things to think about
- find out about midwives, obstetricians and other healthcare professionals who may provide your pregnancy (antenatal) care
- what to expect from your NHS pregnancy journey
- your first midwife appointment
- health things you should know when you're pregnant
The Start4Life site has more about you and your baby at 7 weeks of pregnancy.
You can sign up for Start4Life weekly emails for expert advice, videos and tips on pregnancy, birth and beyond.
Page last reviewed: 04/10/2019
Next review due: 04/10/2022