LONDON: Jennifer Lopez latest film role sees her star as a career-driven single woman who, tired of waiting for the right guy to have a baby with, decides to have a child using In vitro fertilisation.

But ironically her own attitude to alternative methods of conception is anything but modern.

The performer and star of soon to be released film The Back-Up plan who had her twins Emme and Max, 23 months, aged 39, says she never considered IVF.

The singer, 40, said 'I just felt like you don't mess with things like that.'

Lopez explained: 'Because... when it comes to family and relationships, I'm quite traditional. 'Just because of the way I was raised,' she says admitting that she accepted that motherhood might not have been her fate.

'And I also believe in God and I have a lot of faith in that, so I just felt like you don't mess with things like that.

'And I guess deep down I really felt like either this is not going to happen for me or it is...

'And, if it is, it will. And if it's not, it's not going to.'

Thankfully for Lopez it was a decision she did not have to make, as the singer gave birth to After having the babies, Lopez says she spent nearly two years doing 'nothing.'

'I was like a wife and a mum,' she says. 'But you need that time to grow. You can't be afraid of: 'Oh, I'm out of the public, then I'm going to have to make a comeback'. 'It's ridiculous.'

While she is getting her singing career back on track the actress has hit out at film critics who have panned her romantic comedies.

'I think Maid in Manhattan and Monster-in-Law are very layered movies,' she says. 'And that's why they're so successful.

'People don't like s****y romantic comedies. Nothing that's s****y is going to make $100 million.'

When it comes to her next career goal though, Lopez suggests that going behind the camera may be in her future. 'My manager swears that I should direct,' she says.

'I'm like: 'I'm not ready to do that. Just let me do my thing. Maybe when I'm 71.'

has vowed to be in showbiz even when she is a 71-year-old pensioner.

The 40-year-old singer makes her comments in the February issue of US Elle, insisting that she can still keep up with her younger rivals.

'I'll be doing some form of it when I'm 71,' says the dancer-turned-actress-turned-singer from New York.

'This is what I do. What, because I have kids and a husband now I'm not supposed to be me? I'm a more heightened me if anything. Hyper J Lo.

'Everything I wanted before, I want twice as much now. And that doesn't mean material things; it means to explore more, to think more.

'Being an artist doesn't start because you're 21 and it doesn't end because you're 51. 'You are who you are until the day you die.'

Lopez - who has twins with Latin singer Marc Anthony - denies naming her former boyfriends in her new album 'Love?' She says: "I would never speak about specifics in my own relationships because I think it's tacky.

'If you seriously want to know, listen to the music.'