''We set the expectations too high for new mothers. I’m always telling women, Don’t expect to not hate it,' says Kelly

She also talks about balancing work and home as she raises three children while also hosting her popular news program

In the interview Kelly says she was not an attractive child and breaks down recounting the loss of her father when she was just 15-years-old

her more during his interview with Trump before the debate he skipped in Iowa

Megyn Kelly is opening up about her relationship with Donald Trump, life with her three children and much more in a revealing new interview.

In the April issue of MORE, Kelly talks about Trump's decision to skip the Iowa debate she moderated just before the state's caucus, saying she wished that her Fox News coworker Bill O'Reilly would have stuck up for her more when he spoke to the Republican front-runner the night before to try and convince him to take the stage.

'I do wish that O’Reilly had defended me more in his interview with Trump. I would have defended him more,' reveals Kelly.

'Honestly? People think I’m fearless. But I’m human. I was not looking forward to going out on that stage and dealing with Trump if he was going to attack me.

'I felt the pressure of that and the stress of that. But I also knew I would walk through that fear and I would go out there and I would handle it. I can muster up the courage in the difficult situations to get me through.'

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Revealing: Megyn Kelly opens about her relationship with Donald Trump and his attacks on her in the April issue of MORE

Thoughts: 'I was not looking forward to going out on that stage and dealing with Trump if he was going to attack me,' she said of moderating the debates

Kelly says in the interview that Trump's attacks on her, and decision to skip the debate, should ultimately serve as a lesson for politicians.

'The result in Iowa, to the extent it damaged Trump’s fortunes, as Trump believes it did, will hopefully serve as a lesson to other politicians that they bully the media at their own peril,' explains the Fox News host.

'It’s always fun to beat up on the moderators in the press - I get that - but there is a boundary one should not cross, and hopefully this helped define where it is.'

She later adds about Trump's attacks on her: 'I’ve been thinking about that Margaret Thatcher quote where she said something like, "I love when they attack me personally because it means they don’t have a political argument left."'

Kelly also talks about her life growing up in the suburbs of Albany, where she says she was not an attractive child, and the heartache of losing her father when she was just 15-years-old.

She cries during the interview at one point while singing the John Denver song her father used to play for the family - Today.

Then, after becoming a lawyer in Chicago she began to realize she wanted more from life.

'As women, we tend to be pleasers. We respond to positive feedback, people telling us we’re succeeding. But that’s not good enough,' says Kelly.

'Just because you’re good at something doesn’t mean it makes you happy … Nine years in, I recognized that I was unfulfilled. I knew I had to get out, live a life that felt truer to who I was,'

She soon set off on her new career path, and was snapped up by Fox News just one year after getting a job with an ABC affiliate in Washington DC.

Opening up: Kelly also says she wished Bill O'Reilly would have defended her more during his interview with Trump before the debate he skipped in Iowa

The often private Kelly also speaks about her family in the interview - husband Doug Brunt, sons Thatcher, age two, and Yates, age six, and daughter Yardley, five.

Kelly says she and her husband try to keep things simple for their children, despite her success as the anchor of the second-highest rated cable news program.

'We’ve already tried to drill it into their heads that they’d better be prepared to work hard if they want anything. I don’t want my kids to think that everything they touch is gold,' says Kelly.

'I try not to crush their spirits, but I don’t let them win all the time, and I don’t tell them second place is winning. Because it’s not. It’s losing.'

She is just as frank when it comes to her pregnancies as well, and the difficulties of being a working mother, saying" 'We set the expectations too high for new mothers. I’m always telling women, Don’t expect to not hate it. You’re going to feel and look terrible, and you’re going to wonder if you blew up your life.

'The cruel irony of it is, just at the time you’re loving it and you’ve got it down, you have to go back to work.'

The April issue of MORE hits news stands next Tuesday, and more from Kelly's interview can be seen here.

Home: Kelly also talks about balancing work and home as she raises three children while also hosting her popular news program

On Trump: 'It’s always fun to beat up on the moderators in the press - I get that - but there is a boundary one should not cross, and hopefully this helped define where it is,' says Kelly

Wanted more: Megyn Kelly has said she wished Fox stalwart Bill O'Reilly (pictured here with Barney Frank (L) would have done more to defend her against Donald Trump

Meanwhile, Kelly's feud with Trump has been reignited after the front-runner announced Wednesday morning he refused to participate in the next debate, to be hosted by Fox News and moderated by Kelly.

During the last debate, Kelly did not ask Trump a question for the first 30 minutes of the debate, but when she did about his immigration policies, Trump greeted her by saying; 'Nice to be with you Megyn. You’re looking well.'

The Fox News host was cordial, but focused all night as she forced Trump to answer questions about policy and did not allow him to speak over her like he was doing with some of the other candidates on the stage.

Kelly at one point played video examples of times Trump changed his political stances and soon after pointed out the lawsuits that had been filed against him and Trump University.

'We have a 98% approval rating, we have an A from the Better Business Bureau and people like it,' Trump said of Trump University.

Kelly immediately responded by saying; 'The rating from the BBB was a D- and it was a result of a number of complaints they received.'

She then pointed out that 'there’s a class action of 5,000 people' saying these people included 'veterans' and 'teachers.'

'The plaintiffs against you are like the Madoff victims,' said Kelly at one point, before reading the opinion handed down by the US Court of Appeals, which said; '... victims of con artists often sing the praises of their victimizers until they realize that they have been fleeced.'

'Give me break,' said Trump.

'Lets see what happens in a couple of years.'

Kelly previously said she was not anticipating any more fights with Trump during the Republican debates, and that she was preparing the same 'tough but fair' questions for him as she does for other candidates.

'It was never personal from my point of view,' Kelly said.

'I understand he was upset. I didn't take it personally and I certainly don't have anything against him. I find him a very fascinating person to cover.'

Kelly said earlier this month she did not regret questioning Trump on his history of making derogatory statements about women at the first GOP debate on Fox in August.

'I still think it was a great question. I stand by every question I asked him and he was not the only one who had tough questions. He was the only one, however, who complained,' Kelly said.

Trump lashed out at Kelly in the press after the debate, accusing her of singling him out and then refused to take part in the most recent Fox debate ahead of the Iowa caucuses.

Reflecting on the experience, Kelly said it was 'bizarre' to become part of the news.