Visiting Hongkong and Macau

Hello, me and my husband will be traveling this january via Hong Kong. We will stay 2 days in hongkong and remaining 2 days in macau. I read a lot of comments that we are entitled to stay 14 days and travel both regions via ferry. Now, i would like to ask if ever we will both decide to stay 3 days in macau through hotel, does the hotel accomodation will question us since we have our entry permit from Hong Kong? Since we got married last 2014, but I never change yet my passport, does the immigration will question me? or should i bring the marriage certificate?..thank you in advance