What happened this week:
From head to rump, the embryo is now 9mm long. Baby's upper lip is formed. Baby's upper limbs bend at their new elbows. The external ear is beginning to form. Digital rays (early fingers) are developing. The embryo is now 13-16mm (½ inch).
So not much, but I have been very tired this week, so it certainly has taken a lot out of me to develop this little nectarine of mine! hehe I also think that the 'sizes' they give (of how big ones embryo is) is an 'average' and not always accurate. There is a woman in the same DDC as me that has a scan at 6 weeks and her baby was already 9mm by then!