The third trimester of pregnancy, covering weeks 27 to 40 and beyond, marks the final stretch before the much-anticipated arrival of the baby. This period is characterised by significant physical changes for the expectant mother and the final stages of development for the foetus.
Weeks 27-30: During these weeks, the baby’s lungs continue to mature, and it starts to practice breathing movements. Its eyes, previously fused shut, begin to open, and the baby can now blink. Although still small, the baby’s features become more defined, and its body gains more weight.
Weeks 31-34: As the baby’s bones continue to harden, it starts to settle into a head-down position in preparation for birth. By this stage, the baby’s movements may feel different as it has less room to manoeuvre in the womb. The baby gains more weight, and its skin, which was previously wrinkled, becomes smoother as a layer of fat forms beneath it.
Weeks 35-40: In these final weeks, the baby’s organs are fully developed, and it continues to grow and gain weight. Most babies are born between 38 and 42 weeks of pregnancy. The expectant mother might experience increased discomfort as the baby presses on her internal organs, leading to more frequent trips to the bathroom and potential difficulty sleeping.
Throughout the third trimester, the expectant mother may notice Braxton Hicks contractions, which are practice contractions that prepare the uterus for labour. These contractions are usually irregular and less painful than true labour contractions.
Towards the end of the third trimester, the expectant mother might experience a ‘nesting’ instinct, where she feels a strong urge to clean, organise, and prepare the home for the baby’s arrival. This natural instinct often occurs in the final weeks before labour.
Regular antenatal appointments with healthcare providers continue during the third trimester. These appointments allow healthcare professionals to monitor the baby’s position, the mother’s overall health, and any signs of labour. The expectant mother may have additional ultrasound scans to check the baby’s growth and position.
It’s important for the expectant mother to pay attention to any signs of labour, such as regular contractions, the rupture of the amniotic sac (waters breaking), or the passing of the mucus plug, which can indicate that labour is imminent. As the due date approaches, the expectant parents should ensure they have a plan in place for getting to the hospital or birthing centre.
The third trimester is a time of anticipation and preparation, as the expectant parents eagerly await the arrival of their new baby. It’s essential for the mother to take care of her physical and emotional well-being during this period, getting plenty of rest and support from her loved ones as she prepares for the journey of childbirth and motherhood.