This week your baby is the size of an avocado and the head is more erect than previous weeks. At the end of 4th month, the baby shows rapid eyesight development along with facial muscles which will help to detect external light source. Your junior’s circulating system and urinary system are fully functional. He’s inhaling and exhaling amniotic fluid through his lungs. The backbone and tiny muscles are getting stronger every day.
The ideal weight of the baby is estimated to be 100 grams (3.53 ounces)
You may feel pain on the sides if you try to move suddenly; this is due to fact that the ligaments of the sides of the uterus and pelvic walls are stretching as the baby grows bigger. If the pain becomes worse, consult your gynecologist. You may begin to put on some few extra pounds as the pregnancy progresses while some may lose weight; both are part of normal pregnancy routine. Embrace your weight gain and keep up with regular exercise and diet for a healthy child birth.
Even at week 16, the expectant mothers may experience constipation, increased vaginal discharge, increased breast size and dental problems such as gingivitis. You may also have back pain, leg cramps and varicose vein which are common pregnancy symptoms of second trimester.