{"id":72197,"date":"2020-07-26T16:21:43","date_gmt":"2020-07-26T22:21:43","guid":{"rendered":"https:\/\/americanpregnancy.org\/?page_id=72197"},"modified":"2026-04-09T16:26:14","modified_gmt":"2026-04-09T22:26:14","slug":"fetal-development","status":"publish","type":"page","link":"https:\/\/americanpregnancy.org\/pregnancy\/fetal-development\/","title":{"rendered":"Fetal Development"},"content":{"rendered":"\t\t
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Fetal Development <\/b>Understanding How Your Baby Grows<\/h1>


From the moment of conception, your baby begins a remarkable journey of growth and development. What starts as a single fertilized cell quickly becomes a complex and beautifully organized human being.<\/p>

Understanding fetal development can help you feel more connected to your pregnancy and more confident in what is happening inside your body.<\/p>

If you would like to return to the Pregnancy guide, visit the Pregnancy hub<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Pregnancy Topics<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Third Trimester of Pregnancy: Fetal Development<\/a><\/p>

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Second Trimester: Fetal Development<\/a><\/p>

The second trimester is from week 13 through 28. For many women the second trimester is the easiest. Morning sickness…<\/div><\/div><\/div>\n<\/div>\n
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Fetal Development: First Trimester<\/a><\/p>

The\u00a0First Trimester of Pregnancy Week 1 & 2 – Gestational Age Your menstrual period has just ended, and your body…<\/div><\/div><\/div>\n<\/div>\n
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Most mothers-to-be eagerly await that first reassuring baby kick, just to know their baby is growing and developing. Sometime between…<\/div><\/div><\/div>\n<\/div>\n
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Bonding with your baby after he or she is born in most cases comes naturally. There’s nothing hard about cuddling,…<\/div><\/div><\/div>\n<\/div>\n
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Some moms can feel their baby move as early as 13-16 weeks from the start of their last period. These…<\/div><\/div><\/div>\n<\/div>\n
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Early Fetal Development<\/a><\/p>

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Fetal Development - How to Calculate Gestational Age<\/a><\/p>

Calculating the day your baby begins to develop and keeping track of your pregnancy dates can be a challenge. The…<\/div><\/div><\/div>\n<\/div>\n
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Baby Development Month By Month<\/a><\/p>

A baby grows and develops an amazing amount in just nine months. Here’s a short summary of how your baby’s…<\/div><\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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How Fetal Development Begins<\/h2>

Pregnancy officially begins when a fertilized egg implants into the uterine lining. During these first weeks, development happens quickly \u2014 even before many people realize they are pregnant.<\/p>

Soon after implantation:<\/strong><\/p>