Is it natural for mothers after a missed miscarriage to assume that your next pregnancy will be the same?

Mjk

I feel like such a negative nelly with this pregnancy. I had two healthy children (6 and 4 yrs old) then a miscarriage at 13 weeks. This pregnancy, I have this terrible negativity in my head that I basically expect a miscarriage and I’m waiting for the ball to drop. Like I’m not even giving it a chance. Looking for positive stories or encouragement.