Yes, I know. The kid is only a week old, but I'm in my third week of pregnancy. It makes no sense, but get used to it.
Week 3 (Fetal age 1 week)
This week, the baby is the size of the head of a pin, and is just a clump of cells, rapidly dividing. Its parents are hopeful, but don't actually know it exists yet. Trust me, there are no pretty pictures to demonstrate this.