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.
Baby can now make a fist
Their legs and arms have grown significantly in the last few weeks and their body is now longer than their head which developed more radidply to begin with.
Baby is practicing breathing by inhaling and exhaling small amounts of amniotic fluid
This breathing practice will help their lungs to develop and grow. Your little one can now make different facial expressions and they are becoming more active.
Your baby's eyes are closed and will stay that way until about week 28 of pregnancy
Your baby is now starting to store fat underneath their skin. This will help to keep them warm and provide energy so make sure you are including healthy source of fat in your diet.
Your baby can now hear your heart beating and soon they will hear noises in the outside world too
Your heartbeat will become a source of comfort to them over the coming months as they hear it gently beat they will get used to the rhythm.
Your baby will begin to hear this week! They may be able to hear your heart beating, your tummy rumbling or blood moving through the umbilical cord. They are now going through the motions of crying as their lungs are forming and vocal chords are formed, but without any air they are not making any sound... yet! You are probably thinking about when you might feel your baby move for the first time if you haven't already. This is a really exciting time but it is different for every pregnancy so don't worry if you don't feel movements for a little bit longer. Most first time mums-to-be will feel the first movements somewhere between 18 and 24 weeks but it may be a little earlier if it is not your first baby.
There are some foods that you don't need to completely avoid in your diet during pregnancy but you do need to limit the amount of them. For example, you need to try to limit your caffeine intake to below 200mg (1-2 cups coffee or 2-4 cups of tea) per day during pregnancy as it freely absorbed across the placenta and can have an effect on baby's birth weight. Tuna is another example of a food you need to limit in your diet. Although it is a healthy option rich in protein and omega-3 fats it also contains mercury which can be harmful if too much is consumed. It is recommended to limit your tuna intake to 2 medium cans per week or 1 fresh tuna steak per week. .
Baby's leg muscles are strengthening so soon you may be able to feel slight kicks
Their legs have reached roughly the size that they will stay at but the muscles continue to grow. Make sure you are including foods rich in calcium, vitamin D and protein to support healthy muscle function.
Your baby can now hear your voice clearly
Speaking to your baby each day will help them to get more and more familiar with your voice and when you welcome them to the world they will know that familiar sound. Make sure to get Dad talking to your bump too!
The sweet taste of amniotic fluid means that babies naturally have a preference for sweeter flavours once born
Your baby is now rapidly gaining fat and their skin is covered in a white waxy substance called vernix caseosa to protect it and to help with delivery.
Your baby now has their own regular sleeping and waking routine
Your movements may wake baby when they are sleeping, in the same way that their movements or kicks may keep you up at night!
Baby can now tell if they are upside down or the right way up
Now that baby's inner ear is developed they have some sense of balance so they can turn from side to side or head over heels. They are also now proportioned like a newborn baby!
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