Rainbow baby

I had a miscarriage last April at 12 weeks. Now I'm 6 wks and 6 days pregnant. I went in for my first appointment yesterday and got to see the heartbeat. I'm beyond excited for this baby, but the fears of the last one won't seem to go away. I'm trying to be positive and I pray this baby will be healthy and that nothing will happen. I'd appreciate any positive energy sent my way.