Need some good vibes.

I went to my first doctors appointment today. I was super excited to see the US and hear the heart beat. Unfortunately they couldn't see the heart, and could barely make out the size of the baby. I was expecting to be around 9 weeks, but my doc said with all calculations I would be around 10 wks. The ultra sound made it look like I was 6 weeks. She did apologize for the bedside machine for not being the best. I'm going to a hospital tomorrow for hopefully a better US. This would be my 3rd child and we are very excited to be expecting it. Just need some good thoughts and some prayers that everything will come out fine.