11 weeks!info taken from pregnancyandbaby.com
What your baby's up to
Your babies organ systems are now all fully functioning and he has a skeleton, nerves and blood circulation. Your baby has tiny feet that are fully formed and shaped and could stand on an adult's fingernail. The remainder of the pregnancy for your baby will be about rapid growth, organ maturation and getting ready for delivery. Your baby is actually growing so quickly now that he will start out this week being approximately 21 - 25 mm or 0.85 - 1.0 inches and by the end of the week will have doubled that and be approximately 44 - 51 mm or 1.75 - 2.0 inches and weight approximately 7 grams! Your baby's head is still about 1/2 of his body length, and will remain this way for a while.
The baby's eyelids are fused now and the irises are developing. Your baby will also begin to get baby teeth, fingernails, toenails and hair follicles this week.