scared of miscarrying again

Hey ladies.. So after 2 years of ttc & 2 m/c I am final pregnant! I think I'm around 5 &1/2 weeks.. But I am soo so anxious about miscarrying again. Last 2 times I've been pregnant I've m/c around 7/8 weeks. I'm so paranoid, I keep checking for blood every time I go to the toilet and panick at every little cramp or niggle I get in my tummy! Ha anyone got any advice? Whether it's just relaxation techniques or whatever.. Just feel like I'm going mad and I don't want to get overly stressed as that's obviously no good for baby either!! 😄 I should be feeling excited but I can't help but think I'm gonna jinx it by being excited or talking about being pregnant!