Changes in posture
In your current week of pregnancy, your abdomen will start rounding out and your waist will practically disappears, the skin of the anterior abdominal wall is stretched, and the umbilical fossa is smoothed. Pigmentation of the midline of the abdomen is noticeably enhanced. Sometimes fine hair begins to grow from the pubic joint up to the navel — don’t worry, that unwanted hair will fall out after childbirth [1].
The changes to the shape and position of your abdomen will cause a shift in your center of gravity, which in turn can change your posture. The shoulders of expectant mothers might rest back further than normal, while the stomach and pelvis start to protrude. This posture creates an increased load on the spine, which can produce pulling pains in the back. Pain can become stronger if there is a significant increase in weight.
The mammary glands become heavier, which means you will likely have to wear a larger-sized bra. When choosing underwear, try to choose items made from natural fibers such as soft cotton. The seams should be flat and away from the nipple, wide straps will help support the chest wall.
If you are expecting twins
Active movements of the babies, especially at night, can interfere with your sleep. So you might want to consider getting special pregnancy pillows earlier than other moms.
Discharge
If you have been diagnosed with placenta previa or low placentation, then the pressure of the growing baby on the placenta at the front of the uterus can cause bleeding. Even with minimal red discharge, you should seek medical attention immediately.
Tests and examinations
The time is coming for a planned second-trimester ultrasound, during which you may be able to know the baby’s sex.
Brewer S. The Pregnant Body Book. Dorling Kindersley Publishing Staff, 2012, pp. 134, 135.






