Her digestive system is also well on its way to being self-sustaining, as her intestines grow and move into her abdomen, and her kidneys begin to release urine into her bladder. Further up, her brain synapses are becoming more advanced, and the face that you’ll soon know and love starts to take shape. Some more subtle changes are also beginning to occur, as her bone marrow begins to produce protective white blood cells and her pituitary gland begins making hormones.
Your family / personal medical history or perhaps an ultrasound result may suggest to your doctor that you have a slightly greater chance of giving birth to an infant with a birth defect. Therefore your doctor may suggest that you undergo an amniocentesis, a test used to detect some foetal abnormalities.
Around week 12, you may want to talk to your health care professional about whether you should receive an amniocentesis, which is a test to detect any genetic disorders. The procedure is usually performed between weeks 14 and 20 of pregnancy and can be used later in your third trimester if there is a reason do to so.
During an amniocentesis, your health care provider will use an ultrasound to find a safe location from which he or she can extract some fluid from the amniotic sac using a needle. The collected liquid contains cells shed by your baby, and so, through a lab test, your physician may be able to determine whether any abnormalities are present.
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