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4 Weeks Pregnant

Development of The Baby
At 4 Weeks Pregnant

In week 4, majority of women notice they have miss their period and find out there are pregnant.  The baby now is developing three layers ectoderm, endoderm, and mesoderm that will help with the developing of the organs.  The ectoderm helps develop the baby’s nervous system. 

The endoderm develops into the gastrointestinal tract, liver, pancreas, and thyroid. The mesoderm develops into the connective tissue, blood system, muscles, skeleton and urogenital system.

What Are The Changes Occurring In Your Body During
Pregnant Week 4?

During the fourth week of pregnancy your blood supply increases. The increase supply of blood helps the baby receive enough blood for himself.  Many women will complain of needing to pass more urine during early pregnancy. 

Since your kidneys are working a bit harder it leads to frequent urination. At week 4 your heart is also working a lot harder to pump additional blood for the baby. You might feel dizziness and tiredness from your body working so hard.

Test And Exams For Detecting
Week 4 Pregnancy

To detect pregnancy during the first trimester a transvaginal ultrasound is performed. 

Another way to test your pregnancy is using a home pregnancy test. The baby is too small to be deductible on an ultrasound at week fourth.

Signs And Symptoms At
Pregnancy Week 4

At week fourth, you might not experience any symptoms. Frequent early pregnancy symptoms are morning sickness, nausea, gas, bloating, mood swings, cramping, diarrhea, and enlargement of breast, heartburn, and constipation.

Many women experience these additional symptoms during the fourth week:

  • Lower back pain
  • Cravings
  • Missed period
  • Cramping
  • Food Cravings
  • Hot and cold flashes
  • Vaginal spotting
  • Shortness of breath

When To Call A Doctor

There are other early symptoms to watch out for during your pregnancy that may imply serious complications.

  • Fever
  • Visual impairment
  • Severe fever or lasting longer than 24 hours
  • Severe lower abdominal pain

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