Having a horrible pregnancy

I have two daughters and haven't had a baby in 10 years now I was planning this baby so badly and I just find out my brother meet this girl on badoo( a dating site) and got her pregnant 😞💔 I wanna it to have a beautiful pregnancy but I'm not... I guess I wanna it to have only my baby but now we are gotta have two.. Hopefully me and my boyfriend can move out soon cuz I'm so depressed