I need some positive words

I just got a positive pregnancy test and I’m 38 years old. I have 3 kids already but I’m a little nervous about this pregnancy because of my age. I wanted another baby but I’m just hoping I won’t have a miscarriage or anything and everything will be healthy and normal with the baby and pregnancy. I’m having slight cramping which I remember from my past pregnancies but it still always makes me nervous. I have my first OB-GYN appointment tomorrow but I’m a little scared this time. I’m hoping someone has some uplifting words to so I don’t feel so nervous about all this. I’m happy but also a little scared.