At 19 weeks, your baby weighs between 200 and 240 grams and is about 15 to 18 cm long, about the size of a mango or large tomato.
The genitalia are more defined, and the kidneys are generating urine. The cervix and vagina are developing and settling into position in female infants.
Additionally, the baby starts to produce brown fat, a unique kind of fat that aids in controlling insulin levels, metabolism, and body temperature. In colder climates, brown fat becomes active and burns calories to produce heat and keep the infant warm. Although brown fat is much less common than white fat, it is very important for early development.
Together with the neurons that control hearing, taste, smell, and vision, the nervous system is still developing.
Behind the baby teeth, permanent teeth also start to erupt. All of the temporary tooth buds and some of the permanent tooth buds will already be present in the baby’s gums at birth.
To shield the infant from the amniotic fluid, a protective layer known as the vernix caseosa begins or finishes developing around his skin.
Detailed anatomy scan is scheduled between weeks 18 and 22. In week 19, doctors typically recommend it. It enables medical professionals to examine your baby’s brain, spine, heart, lips, nose, ears, and organs for healthy development.