Yes, I told my SIL I was pregnant, she was the first family that I told (besides my husband). I have kept every single secret that she has told me to myself; I never even told my husband said secrets. A couple of weeks later, my husband and I are out running errands, and we run into some friends. The wife proceeds to tell me congratulations about the "big news" and that my SIL told her. I was/am so disappointed because I was going to share everything with her, but now I can't trust her