Should I hope?

Let me just say that I really appreciate all the thoughts and prayers you guys have been giving me. My husband firmly believed the doctor was wrong so I called Nurse D at Womack for a second opinion. She was pretty upset that the doctor told me the things he did. To recap the situation, he had sat down with us and focused on the fact that this could not be a viable pregnancy. He mentioned that they don't make any determination till after a second ultrasound but that he was very "concerned" about the health of the baby. He stated over and over again that things didn't look good and what he saw was not "normal" for a 6-week scan. He was supposed to see a sac, he was supposed to be able to measure the baby, the heartbeat was supposed to be faster. Nurse D disagreed with all of that. She said at Womack they never expect to see much during a 6 week ultrasound which is why they don't schedule the first one till 7 weeks. She gave me renewed hope when she told me that two girls this week came in for a D&C because there was no fetal pole on their last ultrasound and lo and behold, they had normal pregnancies on their scan this week. She did mention that I could miscarry but told me nothing could be certain until next week. My HCG levels came back at 13,319 so that's still within the normal range of 1K-56K. I think that my doctor today said the wrong things to us and made us believe that there was very little hope for this pregnancy. He focused too much on what he was "supposed" to see instead of what he was actually seeing. Apparently Madigan and Womack disagree on what is "supposed" to be seen at a 6 week ultrasound. It has me very confused right now. It sucks that I have to see this doctor again and I have no choice to find another RE (military insurance sucks sometimes) but at least I got a second opinion from Womack.