How do I say it....?

So I recently became a single mom while pregnant this summer and just had my baby less than a month ago. I left my husband because he did some HORRIBLE things. I want to put in my bio that I'm a single mom but a lot of people don't know yet so how do I say it in my bio? I know his family will see and people that know me will ask questions but I'm simply tired of hiding and want to make it known in some way.

Do you guys think this is dumb? How would I put it in my bio?

PS- It's for Instagram.