My sister got married last July after a very short 3 month relationship and 1 month engagement. Surprised but excited, we pulled off an amazing wedding for her in the short time we were given to make their dreams come true. My now fiancé had been planning to propose to me that month, but waited out of respect for my sister. My sister has always been very competitive with me, and on the day we announced our engagement she decided to announce her pregnancy at 4 weeks along. Now, months later, my sister has managed to ruin my entire wedding planning process. She has been rude and mean, criticizing all of my decisions. Ruined my dress shopping appointment and made me cry while trying on my dream dress. I decided to make my best friend my maid of honor due to her behavior, and that has only made things worse. Now, if I visit my family while she is around they ask that I don't speak of the wedding in order to not upset her. my fiancé doesn't understand why I'm so upset, but I feel so hurt.