Your Baby
Your baby's central nervous system, bones and muscles are beginning to develop. At this time, your baby will be around 2 millimetres in length.
You
You may begin to notice some subtle signs that you are pregnant, such as changes or intensification in your sense of smell.
Your Baby
Your baby's limbs have now begun to develop, as well as their eyes and now measure around 4 millimetres long. During this time its heart will start beating at around 160 beats per minute.
You
Due to the amount of pregnancy hormones in your body, you may begin to feel the first symptoms of morning sickness.
Your Baby
Your baby is now around the size of a pea and there are a lot of developments happening concurrently - hands will be forming at the end of their arms, their heart will be developing the left and right chambers, and their lungs will begin to develop. There will be some movement from the baby although you will not be able to pick up on these yet.
You
All the hormonal changes occurring in your body may leave you feeling completely exhausted.
Your Baby
Your baby continues to grow and is now around 14-20 millimetres in length. The heart and lungs are continuing to develop and the nose, eyelids, ears are beginning to grow and take shape. The tubes from the lungs to the trachea, known as bronchi, are beginning to grow. The placenta now covers around one third of the uterus lining.
You
Your uterus is now around 70-80cm in diameter - about the size of an orange.
Typically, morning sickness may start around 4 weeks into the pregnancy and may continue until about weeks 12 to 14 of the pregnancy. However, morning sickness may start later than 4 weeks and may continue until weeks 16 to 20 of the pregnancy (and occasionally beyond).