Help!!

How do I kindly tell my mother she needs to back off? She's been very supportive which I love, especially since this is my first pregnancy and it's high risk, but some things I wish she'd let me handle.

Just today we made our 'official' announcement on Facebook and she was mad that I didn't tell her first. It's not her baby. I get that she wants to tell people too, but I shouldn't have to run my pregnancy decisions by her. I also feel like I'm not allowed to make any decisions without consulting her, and it's not because I think I cant, but because I think she'll be upset if I don't.

I don't want her to think don't want her advice, I just don't want her telling me what to do. Any suggestions?

Thanks!