How do you deal with fear?

Hillary
Hi ladies,
I don't really have any friends who have experienced pregnancy loss, nor have any of them been pregnant and had kids, so I really appreciate anyone willing to read this and help me out. 
In July I had a miscarriage at 7 weeks. It was devastating, but I've finally begun to heal. Last week, I missed my period and got a positive on a HPT. My husband and I are thrilled! 
The thing is though, I cannot stop this constant feeling of overwhelming fear and anxiety. I know the numbers are in my favor, since most women don't have two consecutive miscarriages (so they say) but I am so so scared. 
Lately I feel like my symptoms have stopped, just like they did last time before I started bleeding. I'm just overall freaking out and an emotional mess. 
I just appreciate any words of comfort or wisdom or even blunt truth if I should really be bracing for the worst. Thanks for your help in advance.