When you're 35 or older, there's a higher risk of having complications during pregnancy.
ご質問ありがとうございます。
・「When you're 35 or older, there's a higher risk of having complications during pregnancy.」
(意味) 35歳以上になると出産のリスクが高くなる
・or older〜歳以上
・pregnancy[妊娠](https://eikaiwa.dmm.com/uknow/questions/89367/)
参考になれば幸いです。