I always wondered after seeing the heartbeat on u/s, does that lower your chance of miscarriage? I plan on asking my OB Wednesday but I found this as well. In no way is it scientific but it at least gives some good news:
https://miscarriage.about.com/od/pregnancyafterloss/f/oddsheartbeat.htm
Re: Maybe this will put some of us at ease
As happy and grateful that I am we saw the heartbeat at 6w5d, I wish we could have waited until Wednesday when I'm 8w because we would see a LOT more detail from our LO. So trust me, the wait will be worth it.