Kourtney Kardashian feels nauseous all the time despite being in her third trimester.

The 35-year-old reality TV star, who is set to give birth to another baby girl next month, admits her third pregnancy has been the most difficult to date.

The 'Keeping Up with the Kardashians' beauty, who already has daughter Penelope, two, and son Mason, four, with boyfriend Scott Disick, said: ''During my first two pregnancies I felt so nauseous all day that I could only eat plain toast and bland foods - no proteins. But the nausea went away after the first trimester. This pregnancy, I get nauseous even now if I go too long without eating, and that never happened before when I was in my second trimester.''

But Kourtney, who celebrated two baby showers last week, still enjoys being pregnant and feels very confident about her growing baby bump.

She told Fit Pregnancy magazine: ''I love being pregnant in general. This time I'm more tired than I was the other times. I think it's because I'm always running around and working on different things.

''But I feel comfortable with how I look and feel. I find a pregnant body to be beautiful and an incredible reminder of what a woman's body is made to do.''