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weeks 1-3
In weeks 1-3 the placenta's brain, spinal cord, heart, and digestive system organs begin to develope. -
week 6
Arms and legs grow longer, you can see their feet and hands but they are webed. the lungs begin to form. Most vital organs are developed. -
week 9
The face and its features are well formed. the head makes up nearly half of hte fetus' size. tooth buds appear. -
week 14
All major organ systems are develpoed and functioning. Fine hair called lanugo developes on hte head. Genitals are reconizable. Bones become harder. Fetus starts moving around. -
week 21
lanugo covers the entire body. Eyebrows and eyelashes appear. Nails appear on hte fingers and toes. Fetal heartbeat can be felt with a stethoscope.
