Baby: Week 7

At week 7 all essential body parts are present and accounted for!

Human embryo at 7 weeks gestation, measuring approximately 14 mm (crown to rump). The eye is developing but is not functioning yet. The brain is developing. Photo Credit - Getty Images. Date taken - 1 October 2007

All essential body parts are present and accounted for. Your ankles have formed, your arms are long and bend at the elbows. With basic physiology in place, rapid growth and weight gain are the next steps![1]
You are intricately detailed, but still so tiny, only about 3/4 inch (20 millimeters) long.[2]

[1] BabyCentre.co.uk, http://www.babycentre.co.uk/a800/fetal-development---9-weeks-pregnant#ixzz2Ie9suPMZ

[2] MayoClinic.com, http://www.mayoclinic.com/health/prenatal-care/PR00112/NSECTIONGROUP=2