Baby name

So I’ve been trying to get pregnant for two years and me and my husband has been trying and trying and me having pcos is a real pain in my ASS so me and my husband picked out baby. Names already and we had the names for at least two years we have The baby boys name NOAH ADIEN AND HIS LAST NAME AND WE HAVE FOR A GIRL MARYLIN MIA and her last name already so my sister in law becomes Pregnant and she finds out she’s having a boy And her knowing that I WANTED NOAH she goes and takes The name That I wanted to name my child 🤬🤬🤬🤬😖🤬😖. And it makes me so sick to my stomach how shes so spiteful

So if you guys was in my shoes what would you do would you still name your child the name or change the name