TRIGGER WARNING: sexual abuse Throw away account

My husband (32) and I (31) moved in with my in laws in January to save money for a house. We are newly pregnant and it seemed like the perfect opportunity to stack up cash and finally buy our dream home.

Two weeks ago, my sister in law informed me that she didn't feel that this home is safe for us to live in because my father in law molested her when she was a child, in the room NEXT to mine.

I am in shock. I told her I understand this is a sensitive secret, but I can't continue to live here any longer (OBVIOUSLY). She asked me to wait one week until we met in person so she could tell my husband, her brother, in person, as she's been keeping this secret for 30 years.

My due date isn't until September so I agreed- I could wait one week so she could tell him herself. It's such a sensitive thing, right? She should be the one to tell him.

Now she's backing out of telling him this weekend and telling me not to pressure her because she's not ready to talk about it. However, every time I even HEAR my father in law in the other room, I feel disgusted and think about what she told me. I feel so sad for her and what she went through, but I also feel like it's totally unreal that she would tell me this information and then ask me to continue living here like nothing happened.

I told her that I can't continue living here and I have to plan my future- where I'll live, get on waiting lists for child care, etc- and all the while, my husband and I are experiencing serious strain in our relationship because he doesn't understand why I don't want to live here or why I won't let his parents babysit.

I told my sister in law if she doesn't tell him this weekend, that I am either going to have to decide between telling him myself or leaving him with no explanation why. She's telling me I'm selfish and she regrets ever telling me her secret. I feel horrible because yes, this is the kind of secret you never tell anyone about- but in this situation I feel like my husband knowing is the only way to ensure that he never allows our child around his parents. AITAH?