WebMD Fetal Timeline Header
4 weeks 6 weeks 8 weeks 12 weeks 18 weeks 24 weeks 28 weeks 32 weeks 37 weeks 40 weeks
Watch Your Baby Grow
Curious about how your baby is growing? Each silhouette corresponds to a significant pregnancy milestone.

Click on figures to see details...
It's confusing, but pregnancy is counted from the first day of your last menstrual period. Therefore, your baby is already 2 weeks old at conception!

Note: Experts say every baby develops differently -- even in utero. These fetal development pages are designed to give a general idea of how a fetus grows in the womb.
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MEDICAL REVIEW: Reviewed by Charlotte Grayson, MD, May 2004

SOURCE DOCUMENTATION: Williams Obstetrics 21st edition.

LEGAL DISCLAIMER: This tool is for general information purposes only and does not address individual circumstances. It may not be right for you and should not be relied upon in making decisions
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