You're having second thoughts?
→   재고중이신가요?

[예문]
※  second thoughts :재고, 심사숙고

● It's money that's making  you have second thoughts.
  너가 재고하게 된것이  돈 때문이구나.

● I'm having second thoughts about moving.
  이사가는 것에 대해 고려해 보는 중이야.