My mother-in-law announced the news of my pregnancy on her Facebook page, before I even told my closest friends. I am so angry with her. My husband says i should let it go. How should I handle this?

Awww maybe your mother-in-law was just excited over her new grandchild, reckon there's no malicious intent behind it. Did you or your husband tell her in advance not to announce it before you guys did? I agree with your husband - let it slide - no point getting into a potentially sensitive argument that can dim the happiness brought about your pregnancy. Your friends are not on your mother-in-law's Facebook friends list (I assume?), so you can still do your own creative announcement :)