Older Child Flips After Finding Out

Hello, my name is Shan and this is my second pregnancy (9 weeks); however, my daughter is 11 years old!!! Needless to stay...its like I've never done this before!!!! My husband has a son also. This will be our first together. We agreed to tell the kids together. I knew that wasn't going to work so I secretly told my daughter. To say she's not taking it well is an understatement!!!! She's done a 360! She's a lil hellion now!!! Disrespectful, extreme emo, etc. Tbh, its so emotionally draining and sucking all the fun out of this pregnancy.

Has Anyone else experienced something like this with their kids? My patience has already just about run out 😡