I've had a rocky relationship with my sister for some time now, but it's got progressively worse over the last 5 years, to the point where I haven't seen her or heard from her since August 2009. I won't go into the gory details, but safe to say, she wrecked my self esteem over a course of years, was physically and emotionally abusive and generally an emotional vampire, expecting my role as a younger sister to be there when she wrecked relationship after relationship and had crisis after crisis. My Mum hasn't heard from her since December 2010 either. She doesn't know I am pregnant. I've never really held the belief that blood is thicker than water; if someone's cruel, then the fact that they are related to you is by the by. However, there is something nagging at me saying it's a bit weird that she doesn't know I am pregnant. My Mum won't tell her, but I don't know whether to drop her a text saying I am expecting, at the risk of stirring up old resentments and arguments, or not. I am not on facebook and other than my Mum, don't have any other familiy members or friends in common that she speaks to, so chances are she won't find out at all. Do I just leave it and maybe in years to come she will get her introduction to her niece/nephew if we ever see each other again, or do I let her know? I am a bit torn. Any thoughts or perspectives would be most appreciated ladies.