Need some encouraging words please

Tara • Maggie`s mommy
So I hate being this girl...but I'm freaking out and I just need to talk it out and hope that someone can put my mind and heart at ease. 
I am 11w5d. This is my 2nd pregnancy with my 1st ending in a blighted ovum that i went on to naturally miscarry. 
For the past 3 days, I have had a little bit of cramping which I haven't had any since about week 6.  My mind is just RACING!  I'm so stressed about the fact that it maybe means something more than it actually does. I am not bleeding. And it's just light/intermittent cramps about 2-3 times a day. 
I have my first trimester screening set for Friday so I don't know if part of it is just anxiety about seeing the baby again or what?? Since its what we're so very much looking forward to! 
I just don't know if I'll ever get over this fear of miscarrying with every little thing that could possibly go wrong. It's so frustrating. And draining. I'm just looking for some reassurance that it could be nothing...that it's normal...hopefully?!?!