A little long... need some reassurance

I just need some reassurance. I have very bad endometriosis. Last January I had a miscarriage at 7 weeks. Followed by the removal of a 4 pound mass my right ovary and right fallopian tube August 13th. Fast forward to now I am 9 weeks pregnant tomorrow. I have had my first OB appt. And I am scheduled for an ultrasound on the 30th. I have high blood pressure and I developed pre eclampsia in my first pregnany with my daughter who is now 5 and a half. For some reason I am just so scared that something is going to happen. I want to be super happy. I want to tell everyone but I am just so scared. Has anyone else gone through this? I feel like maybe it is because I have not yet seen or heard the baby and I have to wait another week.