Sorry that you're having sister issues, perplexed. My sister needs to be the center of attention, so I can sympathize. DH and I were married before she was and it was a nightmare! She disappeared the day before the wedding with all the bridesmaid dresses and didn't answer her phone all day, and then broke down weeping at the rehearsal dinner. My aunt had to take her aside and tell her the wedding wasn't about her.
Now that I'm pregnant, my parents and I get 6-8 text pictures of my niece every day and daily reminders of how 2 year olds are so much more difficult than newborns. I've decided that I need to take a sister break for now and don't answer her calls. I have always had to be the strong one, but between the pregnancy and this bleeding and huge deadlines at work, I just don't have enough energy left over for her. I know that sounds bad, but I'm worried what too much stress would do to the pregnancy, so if I have to choose between baby and sister...