London, Nov 1 (IANS) Singer Mariah Carey, who is expecting her first child next year, is so determined to be a good mother that she is spending hours reading pregnancy books.

The ‘Hero’ singer, who confirmed her pregnancy with husband Nick Cannon last week, has also completely changed her eating habits, reports contactmusic.com.

‘Mariah has turned ultra health conscious. There is nothing unhealthy in the house. No junk food, no alcohol, nothing. Nick is making sure she has everything she needs including fetching her just about every book on babies and pregnancy ever written. Mariah is 41 and she’s leaving nothing to chance,’ said a source close to the couple.

But one thing that Carey is not able to avoid is high heels.

‘I came home yesterday to help my wife get ready for her video shoots and she has these 19-inch heels on. So I go into the closet searching for some flats for my wife. She got a lot of damn shoes – it’s like a Macy’s. And Mariah Carey does not own one pair of flat shoes,’ he said.

Carey defended herself, insisting she does own flat shoes – but did not want to wear them.

‘To be fair, I had some boots from Aspen, some Dior boots. Ski boots. And then we did find some flats and then they were a regular ballet slipper, like a beige, and I was like, ‘I don’t think so.” she said.

After persuading Carey to don ski boots, the 30-year-old presenter is now planning a shopping trip to buy the singer some more practical footwear.

‘Basically, I got Mariah Carey, the high-heel queen, to put on some flats. And this is amazing. I’m going shoe shopping today, needless to say, to buy you some flat shoes.’