Any other ladies terrified of miscarrying?

First pregnancy - chemical / early miscarriage

Second pregnancy - healthy son number one💙

Third pregnancy - healthy son number two 💙

Fourth pregnancy - current pregnancy

I literally feel like it’s too good to be true to get three back to back pregnancies without a miscarriage. I know that sounds horrible, but I’m so worried of the statistics of 1 in 4. I did have hcg drawn three times and levels were doubling. I know that doesn’t mean much but I try to get comfort in that. Anyone else feeling this way?