Your baby is called an embryo at this stage
Until around week 8 of pregnancy the medical term for your baby is an embryo. After this they will be referred to as a foetus.
Your baby will double in size by the end of the week
You may not feel like you are pregnant yet but that doesn't mean that there isn't a lot happening! Even at this early stage your baby is developing rapidly and the neural tube is already forming.
Your baby's heart will soon start to beat
Already, your baby is receiving nutrition and oxygen through your placenta. This will continue to pass them nutrients from you and oxygen throughout the next 8 months.
Baby's lungs, liver and pancreas are all being formed
You may be feeling tired at the moment and it is no wonder with all that's going on inside you. Your body is getting used to lots of physical changes and your baby is growing rapidly.
Your baby's heart is beating twice as fast as yours
An adult's heart usually beats around 60 - 100 times per minute but your baby's is already beating 150 beats per minute - this will even increase further to 170 in a couple of weeks.
Your little future genius already has a functioning and rapidly growing brain!
Your baby's head will appear larger than their body as their brain grows rapidly now. When they are born, around 25% of their adult brain will already be formed. This will increase to about 80% by the time they are 3 years old.
Your baby is now moving freely in the amniotic sac. Their arms and legs have lengthened, fingers and toes are forming and brain waves can now be measured! Their head appears much larger than the rest of their body as the brain is growing very rapidly. This rapid brain growth continues throughout pregnancy and for their first few years with 80% of their adult brain being formed by year 3.
Iron is a key nutrient to support brain development. There are two types of iron - haem and non-haem iron. Haem iron is found in foods such as beef, lamb, chicken and fish and is more easily absorbed than non-haem iron. Non-haem iron is found in foods such as leafy green vegetables, beans, eggs and fortified cereals. This iron is not as easily absorbed but including vitamin C in your diet will aid the absorption of iron from these foods. DHA, an omega-3 fatty acid found mainly in oily fish also plays a key role in your baby's brain development. You should try to include oily fish in your diet 1-2 times per week.
Fingerprints are formed in the womb by your baby touching the environment around them
Your baby is reaching out and touching structures such as the cord and the uterus walls. The pressue of this on their tiny fingers will result in "friction ridges" which form fingerprints that last a lifetime!
Baby might be tasting different flavours depending on what you eat!
Your baby's taste buds are now formed and as they swallow mouthfuls of your amniotic fluid they may experience different flavours depending on what you eat.
Baby can now get hiccups and their vocal chords are complete
Although you can't hear them making any sounds as sound can't travel through your uterus they are practising using their vocal cords before they are even born. And once baby arrives you will see that they have been giving them a good workout!
Your baby will quadruple in weight during month 4
During the second trimester you need to increase your calorie requirements very slightly. You need about 350kcal extra per day and this can be easily reached with just 1-2 extra healthy snacks.
Baby is covered in a fine hair called lanugo
The fine hair that covers their body is to protect their skin which is still very transparent. Most babies will shed this hair before birth but some babies (particularly if they arrive early) may not shed it until after birth.
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