At 13 weeks of pregnancy you’re completing your first trimester. The risk of miscarriage has now decreased significantly. The baby now is the size of an egg.
Congratulations for completing the first trimester which for many women is very challenging due getting used to all the changes in the body, increase of hormones, and many symptoms you might encounter such as morning sickness.
Internal Organ Development
The construction of the vocal cord is developing during week 13. Also the intestine is starting to inhabit the permanent place in your baby’s abdomen. Some of the major organs are starting to work. The kidneys are forming urine, pancreases are developing insulin, and liver is secreting bile. The ovaries and testes are done growing.
Bone And Muscle Development
The baby is starting to exercise his reflexes. During week 13 of pregnant the bone tissues start to develop in the legs and arms.
The baby now is also developing their fingerprints. Since he already started moving the arms around, he might be able to suck his thumb and get hiccups by the end of the week.
The external appearance now is more apparent is starting to look like a baby. The genitals also are starting to develop during this week.
The baby is about the size of an egg and it’s about 2.9 inches. The baby is weighing around 0.81 oz.
Many women enjoy the end of the first trimester. All the morning sickness is starting to dwindle down along with feeling of dizziness, fatigue, and nausea. You’ll start having other symptoms as frequent urination or ribcage expanding.
Since the uterus is progressively moving upwards you will start developing your baby bump. Women carrying twins or over weight might see a belly bump sooner.
You’ll be surprise to notice so much activity from your baby. The baby does move al lot in the stomach. The ultrasound will reveal the baby see through skin. You’ll see the veins, blood vessels, and organs.
As you are entering your send trimester the symptoms of morning sickness, nausea, fatigue, and dizziness are decreasing.
Some of the most common symptoms during week 13:
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