I went to the doctor yesterday and it was my first appt to hear the baby's heart beat. Well she couldn't find it so she did an ultrasound which showed everything was fine except for the baby does not look like a 12 week old baby. I went by the date of my last missed period and they told me my due date was October 23rd. Now she's saying the baby looks to be about 9 weeks. Has this happened to anyone. What's going on. I'm scheduled for another ultrasound on Monday to get a more accurate due date. It makes me kind of nervous because I read how some babies stop growing. Just worried...