Scared and stressed

I just found out I am pregnant with my rainbow baby! I am happy but after going through a miscarriage around this time last year I don’t want to get too excited and lose it. I am having mild cramping here and there, I also haven’t even had my first appointment yet so my question is, is this normal? I want to be excited but don’t want to give my hopes up. Any type of funny cramping feeling I have I sorta freak out. Help ☹️