MayoClinic.com Fetal development begins before you even know you're pregnant. Here's a calendar of events.
Upside: Superb summary of fetal development by week
Downside: Links to 2nd and 3rd trimester at bottom of page
A fetus (or foetus or fœtus) is a developing mammal or other viviparous vertebrate, after the embryonic stage and before birth. The plural is fetuses, or sometimes feti.
Upside: Excellent user-compiled detail on fetal development from conception to birth including specific development information
There simply is not another word worthy to describe the development of your baby! Just think, within approximately a 40 week period, your little one will have transformed from a single cell to a ...
Upside: Week by week description and pictures of fetal development
Downside: Several weeks on a single page - lots of scrolling
centimetres -- a little large. I have had two other children. Is the height okay?
Upside: Expert reply to user question on calculating large for due date
Downside: Busy page
How is your baby growing and changing? Choose your week of pregnancy from the menu, or click on the links below to see your baby's development week by week.
Upside: Pictures, information and links for by-month and by-week fetal development
1. Fertilization and the Prenatal Period Fertilization: The union of an egg cell and sperm cell to form the zygote, which contains twenty-three pairs of chromosomes.
Upside: Text-only student paper on fetal development
Downside: Colors make article difficult to read; lots of scrolling
After the first trimester of pregnancy a multiparameter assessment of gestational age is advocated. This should include at least two fetal measurements (usually biparietal diameter (BPD) and femur ...
Upside: Excellent charts for various fetal measurements
Downside: Scroll down to see all the charts
Upside: Nice graphics and some additional information
Downside: Limited detail on fetal development
Baby's Growth: In some cases it is difficult to determine the gestational age because the baby is unusually large or small. Also, in some cases the size of the uterus in early pregnancy or the height ...
Upside: Some helpful information on understanding gestational age due to baby's size
Downside: Limited links for additional depth
Week 4*: Poppyseed Week 5: Appleseed Week 6: Sweet Pea
Upside: Cute pictures and information on baby development by week with user postings
Downside: No actual pictures of the fetus