Pregnancy Week 1
Pregnancy week 1: Pregnancy dating begins, although conception has not usually occurred. Practical, evidence-informed guidance for this stage of the first trimester.
Read more →EXPLORE
Archives: Pregnancy Weeks
Explore the latestMost recent Editor’s picks Most read
Pregnancy Week 2
Pregnancy week 2: Ovulation and the fertile window may occur near the end of this week in a typical cycle. Practical, evidence-informed guidance for this stage of the first trimester.
Read more →Pregnancy Week 3
Pregnancy week 3: Fertilisation and the earliest cell divisions may take place. Practical, evidence-informed guidance for this stage of the first trimester.
Read more →Pregnancy Week 4
Pregnancy week 4: Implantation may be complete and a pregnancy test may soon become positive. Practical, evidence-informed guidance for this stage of the first trimester.
Read more →Pregnancy Week 5
Pregnancy week 5: Hormone levels are rising and the foundations of the nervous system are forming. Practical, evidence-informed guidance for this stage of the first trimester.
Read more →Pregnancy Week 6
Pregnancy week 6: Early facial features and limb buds are emerging as organs develop quickly. Practical, evidence-informed guidance for this stage of the first trimester.
Read more →Pregnancy Week 7
Pregnancy week 7: The head and brain are growing rapidly, with hands and feet beginning to form. Practical, evidence-informed guidance for this stage of the first trimester.
Read more →Pregnancy Week 8
Pregnancy week 8: Major organs are established in early form and the embryo is becoming more recognisably human. Practical, evidence-informed guidance for this stage of the first trimester.
Read more →Pregnancy Week 9
Pregnancy week 9: The embryo is moving into the fetal period and facial features continue to refine. Practical, evidence-informed guidance for this stage of the first trimester.
Read more →Pregnancy Week 10
Pregnancy week 10: The fetal period begins, with established structures now growing and maturing. Practical, evidence-informed guidance for this stage of the first trimester.
Read more →Pregnancy Week 11
Pregnancy week 11: The body is lengthening and small movements are becoming more coordinated. Practical, evidence-informed guidance for this stage of the first trimester.
Read more →Pregnancy Week 12
Pregnancy week 12: The first trimester is nearing completion and many body systems are in place. Practical, evidence-informed guidance for this stage of the first trimester.
Read more →Pregnancy Week 13
Pregnancy week 13: The second trimester begins in many clinical calendars, and growth becomes the main theme. Practical, evidence-informed guidance for this stage of the first trimester.
Read more →Pregnancy Week 14
Pregnancy week 14: Facial movements and coordinated limb activity are increasing. Practical, evidence-informed guidance for this stage of the second trimester.
Read more →Pregnancy Week 15
Pregnancy week 15: Hearing structures and skeletal development are progressing. Practical, evidence-informed guidance for this stage of the second trimester.
Read more →Pregnancy Week 16
Pregnancy week 16: Growth accelerates and some experienced parents may notice the earliest fluttering movements. Practical, evidence-informed guidance for this stage of the second trimester.
Read more →Pregnancy Week 17
Pregnancy week 17: Body fat begins to form and movement becomes stronger, though it may still be hard to identify. Practical, evidence-informed guidance for this stage of the second trimester.
Read more →Pregnancy Week 18
Pregnancy week 18: The nervous system is refining connections and the anatomy scan window is approaching. Practical, evidence-informed guidance for this stage of the second trimester.
Read more →Pregnancy Week 19
Pregnancy week 19: Sensory systems are developing and a protective skin coating begins forming. Practical, evidence-informed guidance for this stage of the second trimester.
Read more →Pregnancy Week 20
Pregnancy week 20: You are around the midpoint by conventional dating, with growth and movement becoming more apparent. Practical, evidence-informed guidance for this stage of the second trimester.
Read more →Pregnancy Week 21
Pregnancy week 21: Movement patterns are becoming more recognisable as the fetus develops periods of activity and rest. Practical, evidence-informed guidance for this stage of the second trimester.
Read more →Pregnancy Week 22
Pregnancy week 22: The senses and facial features continue maturing while the fetus gains strength. Practical, evidence-informed guidance for this stage of the second trimester.
Read more →Pregnancy Week 23
Pregnancy week 23: The lungs are developing structures needed for later breathing, though they remain immature. Practical, evidence-informed guidance for this stage of the second trimester.
Read more →Pregnancy Week 24
Pregnancy week 24: Lung development and rapid brain growth continue, and movement is usually clearer. Practical, evidence-informed guidance for this stage of the second trimester.
Read more →Pregnancy Week 25
Pregnancy week 25: The fetus is adding tissue and practising reflexes, with increasingly strong activity. Practical, evidence-informed guidance for this stage of the second trimester.
Read more →Pregnancy Week 26
Pregnancy week 26: The eyes begin opening and the brain becomes more responsive to sensory information. Practical, evidence-informed guidance for this stage of the second trimester.
Read more →Pregnancy Week 27
Pregnancy week 27: The second trimester closes as the brain, lungs and body continue maturing. Practical, evidence-informed guidance for this stage of the second trimester.
Read more →Pregnancy Week 28
Pregnancy week 28: The third trimester begins, with rapid brain growth and increasing fat stores. Practical, evidence-informed guidance for this stage of the third trimester.
Read more →Pregnancy Week 29
Pregnancy week 29: Muscles and lungs continue maturing while the fetus gains weight steadily. Practical, evidence-informed guidance for this stage of the third trimester.
Read more →Pregnancy Week 30
Pregnancy week 30: The fetus is accumulating fat and practising breathing movements, while space feels tighter. Practical, evidence-informed guidance for this stage of the third trimester.
Read more →Pregnancy Week 31
Pregnancy week 31: Brain connections expand rapidly and the fetus continues gaining fat and muscle. Practical, evidence-informed guidance for this stage of the third trimester.
Read more →Pregnancy Week 32
Pregnancy week 32: Growth, fat storage and practice breathing continue as birth preparation becomes more practical. Practical, evidence-informed guidance for this stage of the third trimester.
Read more →Pregnancy Week 33
Pregnancy week 33: The fetal immune system receives antibodies and the brain continues rapid development. Practical, evidence-informed guidance for this stage of the third trimester.
Read more →Pregnancy Week 34
Pregnancy week 34: Lung and nervous-system maturation continue while the fetus gains protective fat. Practical, evidence-informed guidance for this stage of the third trimester.
Read more →Pregnancy Week 35
Pregnancy week 35: The fetus is gaining weight and practising the coordinated skills needed after birth. Practical, evidence-informed guidance for this stage of the third trimester.
Read more →Pregnancy Week 36
Pregnancy week 36: The pregnancy is approaching term, while brain and lung development still continue. Practical, evidence-informed guidance for this stage of the third trimester.
Read more →Pregnancy Week 37
Pregnancy week 37: The pregnancy has reached early term in commonly used definitions. Practical, evidence-informed guidance for this stage of the third trimester.
Read more →Pregnancy Week 38
Pregnancy week 38: The fetus is term and continues fine-tuning breathing, feeding and temperature control. Practical, evidence-informed guidance for this stage of the third trimester.
Read more →Pregnancy Week 39
Pregnancy week 39: Birth may happen soon, although normal pregnancy can continue beyond this week. Practical, evidence-informed guidance for this stage of the third trimester.
Read more →Pregnancy Week 40
Pregnancy week 40: You have reached the estimated due week, which is an estimate rather than an expiry date. Practical, evidence-informed guidance for this stage of the third trimester.
Read more →