to scared to tell my sister

Mim

Cutting a long story short when I found out I was pregnant with my first, I ended up being a single mum at 8 weeks pregnant. When I told my sister we drifted apart and nearly spoke. I didn't talk to her about the pregnancy as I either got a blank expression or short answer. 6 years later I'm pregnant again. But this time my situation is different, my partner has helped me raise my daughter since she was 6 months old, we have always been honest bout trying for another one to my sister etc. Now I'm too scared to tell her I'm pregnant again in case she reacts like she did last time. if she does, is it horrible of me to say to her that she can stay away or don't expect to do what she did last time. (as soon as my daughter was born she was fine). I'm so scared of what her reaction will be