Jennifer Lopez has turned to IVF treatment in a bid to get pregnant.

The singer-and-actress ¨C who is married to Latin star Marc Anthony - is reportedly desperate to have two children and has been talking to patients at the IVF - In Vitro Fertilisation - clinic in Los Angeles' Cedars-Sinai Medical Centre.

A source told The Sun: "Jennifer said she wanted to have two children. She said she'd recently started IVF treatment and couldn't wait to have a family."

The 37-year-old Maid in Manhattan star, who recently said she would "do anything to get pregnant", has also tried eating spinach to make her more fertile.

On her doctor's recommendations, J.Lo has been eating the leafy vegetable three times a day to boost her intake of folic acid and increase her chances of conception.

She recently said: "Since my doctor recommended it I've been on spinach omelettes for breakfast, spinach salad for lunch and saut¨¦ed spinach with every dinner.

"I guess if the spinach doesn't help me conceive, I'll still end up with Popeye-sized muscles."

Last month, Jennifer's spokesman rubbished reports she was expecting her first child, after US pop star Jesse McCartney told a radio station she was pregnant.

The spokesman said: "She is 100 per cent not pregnant."