Pregnancy: Conception – Maternity – Trimester
Week 26 of pregnancy: brain activity eye development and response

Week 26 of pregnancy: brain activity eye development and response

Where you are in pregnancy at week 26 At 26 s, you are nearing the end of the . The uterus is expanding upward, the baby is gaining , and many organ s are moving from formation toward functional maturation. The still has significant growth and refinement ahead, particularly in the lungs, , immune system, […]

Week 24 of pregnancy: viability milestone and nervous system development

Week 24 of pregnancy: viability milestone and nervous system development

Understanding the 24-week viability milestone In obstetrics, viability refers to the possibility that a baby born preterm may survive outside the uterus with support. Week 24 is often described as an important threshold because survival becomes more possible than in earlier weeks, especially in hospitals with high-level neonatal intensive care units. However, viability is not […]

Week 30 of pregnancy: brain structure bone strength and positioning

Week 30 of pregnancy: brain structure bone strength and positioning

Your baby at 30 weeks: a transition into late third-trimester refinement At 30 , pregnancy is approximately three quarters complete, although the final weeks remain biologically important. The fetus is continuing to gain weight, accumulate fat, mature the lungs, refine neurological function, and strengthen the skeleton. These processes do not happen independently; brain maturation, muscle […]

Week 29 of pregnancy: stronger kicks muscle activity and body fat increase

Week 29 of pregnancy: stronger kicks muscle activity and body fat increase

Your baby at 29 weeks: active, growing, and gaining fat By week 29, your baby is in a period of rapid refinement. Major organs and body systems have been forming for months, but the is especially important for , maturation, and . The baby is becoming more proportionate, and the accumulation of subcutaneous fat is […]

Week 27 of pregnancy: body fat increase and transition into third trimester

Week 27 of pregnancy: body fat increase and transition into third trimester

Where week 27 fits in pregnancy Week 27 sits at the boundary between the second and s. Some systems define the as beginning at week 28, while others consider week 27 part of the transition. Clinically, what matters most is not the label but the physiologic shift: the fetus is growing rapidly, maternal cardiovascular and […]

Week 25 of pregnancy: stronger reflexes stretching and active fetal movement

Week 25 of pregnancy: stronger reflexes stretching and active fetal movement

Your baby at 25 weeks: active movement and maturing reflexes At 25 , is less about creating brand-new body systems and more about strengthening, refining, and coordinating them. The baby’s muscles are growing, the skeleton continues to mineralize, and the nervous system is increasingly able to transmit signals that produce purposeful-looking s. You may notice […]

Week 21 of pregnancy: digestive system and growth acceleration

Week 21 of pregnancy: digestive system and growth acceleration

Your baby at 21 weeks: growth is gathering pace By week 21, is becoming more dynamic. The baby is gaining length and weight, and body proportions are gradually becoming more newborn-like. The NHS notes that around this stage the baby is now heavier than the placenta. This can be a meaningful detail: early in pregnancy, […]

Week 23 of pregnancy: brain growth lung structure and weight gain

Week 23 of pregnancy: brain growth lung structure and weight gain

Your baby at 23 weeks: size, movement, and overall development By week 23, the fetus is often described as roughly the size of an eggplant, although individual varies. Estimates of size and weight are averages, and ultrasound measurements can have a margin of error. What matters most clinically is the overall pattern over time, the […]

Week 19 of pregnancy: sensory development and growth patterns

Week 19 of pregnancy: sensory development and growth patterns

Where week 19 fits in the second trimester At 19 weeks, pregnancy is well into the ]], often described as a phase of more visible growth and increasing activity. The fetus is still relatively small, but its proportions are changing: the limbs are more developed, muscle tone is improving, and s are becoming more purposeful. […]

Week 18 of pregnancy: hearing nervous system and anatomy scan

Week 18 of pregnancy: hearing nervous system and anatomy scan

Your baby at 18 weeks: growth, movement, and sensory development By week 18, the is growing steadily and becoming more proportionate. Individual pregnancy dating can vary slightly depending on earlier measurements and menstrual cycle history, but this stage is generally considered a period of rapid refinement rather than the formation of entirely new major . […]