As your uterus becomes more stretched, it gets thinner and allows a certain amount of light and sound in. This can affect your baby's sleeping and resting patterns, meaning that you're probably getting used to which times of day she is more active.
In these last weeks, mums may start noticing some signs of pre-labour. These can include Braxton Hicks contractions, which are small practise contractions that last about 25 seconds. They should not be painful but may cause a little bit of discomfort. Mums often get a surge of energy around now, and you might feel the need to busy yourself making final preparations for the new arrival. Try not to over-do it; you'll need that energy for the labour.
Your perineum is the area between the anus and the vagina. During childbirth, the perineum is stretched a lot so it can be helpful to prepare the area by gently massaging it with oil. This can help increase the elasticity and make the skin tissue more flexible, and may help to prevent a tear.