I'm coming out and need advice?

I'm 13 and I'm Biual. I recently came out to all my school friends and they are alright with it, to be honest they like having a bi friend. I have reached the point where I need to tell my parents, but I'm really nervous and unsure, I don't know what they would have to say, etc. So I need some advice on what I need to say, How I'm going to say it, How I'm sure. Plus, My mom is going through menopause, so she's abit moody, which is also turning me off from telling them