You are now 18 weeks pregnant, which is beginning of week 19. Your baby is now 20 cm long (7.9 inches) from head to toe and weighs approximately 310 grams (about 11 ounces).
Your baby has a fine layer of hair covering their body called lanugo. This helps protect their skin and is only shed a few weeks before they are due to be born. A few babies are born with lanugo, which falls out during the early weeks of life.
You may be booked to have a routine ultrasound soon. This test aims to detect obvious physical abnormalities in an unborn baby and is usually timed for around 19 weeks. Unborn babies need to be at least 18 to 20 weeks gestation for the ultrasonographer to clearly see the normal physical structures of their body, including their heart, lungs, kidneys, brain and spine. An experienced ultrasonographer may even be able to tell if your baby is a girl or a boy, although this is not always 100% accurate!
The ultrasonographer also checks the position of the placenta and comments on where it is situated. A low-lying placenta at this early stage of pregnancy is not abnormal and happens for about 5% of women. This is because the lower segment of the uterus does not start forming until about the 24th week of pregnancy and is fully formed by 36 weeks. In 90% of cases, the previously low-lying placenta moves up and out of the way into the upper segment as the uterus grows. Meaning that by about the 34th to 36th week, it is no longer low-lying.
What’s my baby doing at 18 weeks?
This week she will learn how to yawn and hiccup – something you might start feeling soon! Your baby’s nervous system is also maturing rapidly and her nerves are now forming complex connections. Your baby’s hearing is now getting more acute, which means now is a good time to start talking and signing to your growing bump!
What is my body doing at 18 weeks?
By now your uterus has moved up into position and has grown to about the size of a cantaloupe melon. In fact, you’ll probably be able to feel it about one and half inches below your belly button. Yet this movement is also putting pressure on your lower back, which means backache is a common side effect from now on.
Last week we spoke about the pregnancy hormone relaxin, which is continuing to work round your body this week, relaxing all your ligaments and loosening your joints. Reduce those aches and pains by sitting down with your feet up, or taking a long warm bath.
Common symptoms to look out for:
Your baby has a fine layer of hair covering their body called lanugo. This helps protect their skin and is only shed a few weeks before they are due to be born. A few babies are born with lanugo, which falls out during the early weeks of life.
You may be booked to have a routine ultrasound soon. This test aims to detect obvious physical abnormalities in an unborn baby and is usually timed for around 19 weeks. Unborn babies need to be at least 18 to 20 weeks gestation for the ultrasonographer to clearly see the normal physical structures of their body, including their heart, lungs, kidneys, brain and spine. An experienced ultrasonographer may even be able to tell if your baby is a girl or a boy, although this is not always 100% accurate!
The ultrasonographer also checks the position of the placenta and comments on where it is situated. A low-lying placenta at this early stage of pregnancy is not abnormal and happens for about 5% of women. This is because the lower segment of the uterus does not start forming until about the 24th week of pregnancy and is fully formed by 36 weeks. In 90% of cases, the previously low-lying placenta moves up and out of the way into the upper segment as the uterus grows. Meaning that by about the 34th to 36th week, it is no longer low-lying.
What’s my baby doing at 18 weeks?
This week she will learn how to yawn and hiccup – something you might start feeling soon! Your baby’s nervous system is also maturing rapidly and her nerves are now forming complex connections. Your baby’s hearing is now getting more acute, which means now is a good time to start talking and signing to your growing bump!
What is my body doing at 18 weeks?
By now your uterus has moved up into position and has grown to about the size of a cantaloupe melon. In fact, you’ll probably be able to feel it about one and half inches below your belly button. Yet this movement is also putting pressure on your lower back, which means backache is a common side effect from now on.
Last week we spoke about the pregnancy hormone relaxin, which is continuing to work round your body this week, relaxing all your ligaments and loosening your joints. Reduce those aches and pains by sitting down with your feet up, or taking a long warm bath.
Common symptoms to look out for:
- Your baby moving! A very exciting feeling, if you’ve experienced weird rumblings in your tummy the past few days, it’s not something you’ve eaten, but your baby moving around the womb. Don’t worry if you haven’t felt anything yet, it might take a few weeks for you to start feeling those first kicks.
- Leg cramps: If you’re finding yourself being woken up at night with shooting pains in your claves, rest assured this is also normal. Experts aren’t sure what causes this, but recommend trying calf stretches before bed to alleviate the symptoms.
- Bleeding gums: Around half of mums-to-be will experience bleeding gums during pregnancy thanks to those pesky hormones. It’s nothing to worry about, but it’s really important to look after your teeth and gums during pregnancy.
- Heartburn: Another common symptom during pregnancy, as those hormones loosen the muscle connecting your stomach to your windpipe, acid can regurgitate up, causing a burning sensation in your chest. Unfortunately, this is one that is only going to get worse as your bump gets bigger.
- Edema: A fancy word to describe the swelling in your feet and ankles that often happens during pregnancy. If your feet and legs look like you’ve just got off a long-haul flight, do not panic, this is simply a sign your body tissues are accumulating fluid to support your baby. You can reduce the water tension in your feet and lower legs by avoiding standing or sitting for too long, and keeping your feet up whenever you can.
Physical changes
Weight gain
Many women put on most of their weight during the first 20 weeks of pregnancy, or only gain a few kilograms up until 12 to 16 weeks of pregnancy, then experience a growth spurt during the middle of their pregnancy.
Emotional reactions
At some point during their pregnancy most women wonder whether their baby is normal and perhaps what they would do if something were found to be wrong. These feelings may be instinctive or possibly related to unexplainable thoughts like "Do I deserve a healthy baby?" Or there may be concrete reasons such as a disorder that runs in the family.
Fears can be also triggered unexpectedly by caregivers offering screening tests for abnormalities, even though the thought had not even entered their mind. This can be quite confronting and maybe challenge your feelings about your body's ability to produce a healthy baby. Unfortunately no amount of tests can give you an ironclad guarantee, but thankfully most babies are born well and healthy.
Other considerations
Radiation and electromagnetic field emissions
Electronic equipment has become a virtually inescapable part of our modern environment. The information currently available about the effects of exposures and their possible side effects on a woman's pregnancy or her unborn baby are well known in some areas but not fully understood in others. The fast development of new technologies means they often become part of our lives long before we have a chance to fully evaluate them.
Lead exposure
This can be of concern, especially when renovating an old house. However, lead already within your body can also be an issue during pregnancy.
Natural therapies
Kinesiology was developed in the USA by chiropractors. Kinesiology gently tests muscles to identify weaknesses in the body and aims to detect physical and emotional imbalances before they manifest into serious health problems. Kinesiology is regarded as safe to use during pregnancy.
Your week 18 FAQ’s answered:
Can I expect to feel movement at 18 weeks?
Feeling your baby move is one of the most special parts of pregnancy, yet it can raise a lot of questions – is my baby moving too much or not enough? There’s a wide range in what is normal, and movement varies from baby to baby. Most women will feel the first movements, known as quickening, between 14 and 26 weeks.
What if I can’t feel movement at 18 weeks?
Do not panic, every baby is different and if you don’t feel any movement this week, it is not a sign that anything is wrong. The position of the placenta can also affect how much movement you feel at this stage – if it’s facing the front (medically referred to as an anterior placenta) these early movements can be muffled and you might have to wait a few more weeks.
Baby kicking
A few women sense their unborn baby's movements quite early in their pregnancy (12 to 16 weeks). Others don't feel anything distinctive until 23 to 25 weeks. The timing of when you feel your baby first move is very individual, but it usually happens between 18 to 22 weeks.
The sense of your baby's first movements may be difficult to distinguish, especially if this is your first pregnancy. A question commonly asked is, "Is that my baby moving or just wind?" Many women describe their first sensations as a faint, fluttering feeling (like butterflies) or like small bubbles popping in their belly. Others describe a scratching internal feeling (especially if it is felt very early in the pregnancy). One woman described hers as a similar feeling to when your muscles involuntarily twitch, but coming from inside her belly! Generally, after 2 or 3 weeks of infrequent and sporadic sensations, the feelings become stronger and resemble more definite kicks. Before long it becomes very obvious they could be nothing else but your little one wriggling around!
A few women sense their unborn baby's movements quite early in their pregnancy (12 to 16 weeks). Others don't feel anything distinctive until 23 to 25 weeks. The timing of when you feel your baby first move is very individual, but it usually happens between 18 to 22 weeks.
The sense of your baby's first movements may be difficult to distinguish, especially if this is your first pregnancy. A question commonly asked is, "Is that my baby moving or just wind?" Many women describe their first sensations as a faint, fluttering feeling (like butterflies) or like small bubbles popping in their belly. Others describe a scratching internal feeling (especially if it is felt very early in the pregnancy). One woman described hers as a similar feeling to when your muscles involuntarily twitch, but coming from inside her belly! Generally, after 2 or 3 weeks of infrequent and sporadic sensations, the feelings become stronger and resemble more definite kicks. Before long it becomes very obvious they could be nothing else but your little one wriggling around!
Weight gain
Many women put on most of their weight during the first 20 weeks of pregnancy, or only gain a few kilograms up until 12 to 16 weeks of pregnancy, then experience a growth spurt during the middle of their pregnancy.
Emotional reactions
At some point during their pregnancy most women wonder whether their baby is normal and perhaps what they would do if something were found to be wrong. These feelings may be instinctive or possibly related to unexplainable thoughts like "Do I deserve a healthy baby?" Or there may be concrete reasons such as a disorder that runs in the family.
Fears can be also triggered unexpectedly by caregivers offering screening tests for abnormalities, even though the thought had not even entered their mind. This can be quite confronting and maybe challenge your feelings about your body's ability to produce a healthy baby. Unfortunately no amount of tests can give you an ironclad guarantee, but thankfully most babies are born well and healthy.
Other considerations
Infections
It may be of concern if you are exposed to an infection during your pregnancy, usually a virus such as chicken pox, measles or mumps. These can potentially affect unborn babies, as the organisms can pass through the placenta, or make the woman unwell, affecting the course of her pregnancy. Any effects will generally depend on the stage of pregnancy the woman becomes infected and whether she has immunity.
It may be of concern if you are exposed to an infection during your pregnancy, usually a virus such as chicken pox, measles or mumps. These can potentially affect unborn babies, as the organisms can pass through the placenta, or make the woman unwell, affecting the course of her pregnancy. Any effects will generally depend on the stage of pregnancy the woman becomes infected and whether she has immunity.
Radiation and electromagnetic field emissions
Electronic equipment has become a virtually inescapable part of our modern environment. The information currently available about the effects of exposures and their possible side effects on a woman's pregnancy or her unborn baby are well known in some areas but not fully understood in others. The fast development of new technologies means they often become part of our lives long before we have a chance to fully evaluate them.
Lead exposure
This can be of concern, especially when renovating an old house. However, lead already within your body can also be an issue during pregnancy.
Natural therapies
Kinesiology was developed in the USA by chiropractors. Kinesiology gently tests muscles to identify weaknesses in the body and aims to detect physical and emotional imbalances before they manifest into serious health problems. Kinesiology is regarded as safe to use during pregnancy.
Your week 18 FAQ’s answered:
Can I expect to feel movement at 18 weeks?
Feeling your baby move is one of the most special parts of pregnancy, yet it can raise a lot of questions – is my baby moving too much or not enough? There’s a wide range in what is normal, and movement varies from baby to baby. Most women will feel the first movements, known as quickening, between 14 and 26 weeks.
What if I can’t feel movement at 18 weeks?
Do not panic, every baby is different and if you don’t feel any movement this week, it is not a sign that anything is wrong. The position of the placenta can also affect how much movement you feel at this stage – if it’s facing the front (medically referred to as an anterior placenta) these early movements can be muffled and you might have to wait a few more weeks.
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