How soon feel baby move 2nd pregnancy
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In which month baby start moving in womb second trimester...
Fetal development week by week
Nestled comfortably in the womb, your baby is constantly growing and changing. Use this timeline to learn what your baby's up to and how they're developing throughout pregnancy.
Follow your baby's development week by week, from conception to labor, in these amazingly detailed, doctor-reviewed images.
2 weeks: Fertilization
At the start of this week, you ovulate.
Difference between gas bubbles and baby moving
Your egg is fertilized 12 to 24 hours later if a sperm penetrates it. Over the next several days, the fertilized egg (called a zygote) will start dividing into multiple cells as it travels down the fallopian tube, enters your uterus, and starts to burrow into the uterine lining.
Read about fertilization.
3 weeks: Implantation
Now nestled in the nutrient-rich lining of your uterus is a microscopic ball of hundreds of rapidly multiplying cells that will develop into your baby.
This ball of cells, called a blastocyst, has begun to produce the pregnancy hormone hCG, which tells your ovaries to stop releasing eggs.
Read about implantation.
4 weeks
Your
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