Announcement tomorrow

I wondering if something is wrong with me. I want to announce to my moms side of the family tomorrow. I’ll be 10+4 days tomorrow. At first I was so excited to tell everyone but now I’m starting to get anxious about it. I don’t want to announce and something happen. We’ve been trying for almost 8 1/2 years and I had a miscarriage in 2015. I feel like I’m starting to get depressed over thinking about it. We had our first prenatal appointment last week and everything was great, so I don’t know why I feel like this. My question is am I the only one who feels like this (and what did you do about it) or may I really be going crazy. I feel like I don’t want to tell anyone till the baby is due in case something happens. I just don’t want to feel like a failure again but this time the whole family know about it. I just need some reassurance that this is normal because I don’t really know if it is. Uhh. Btw I’m always the one to think of the glass half empty. So this kind of thinking is really nothing new for me.