Kristin Cavallari's pregnancy is making her "feel gross."

The reality TV star is pregnant with her second child and although has got through most of the negative side-effects associated with the first trimester she is now feeling tired all the time.

"You just feel gross. I live in leggings. I need to get it together and maybe put in a little effort to feel better about myself. I've been great, except that I'm really tired. It gets better after the first trimester, but it never really goes away," she said.

Kristin - who already has a 17-month-old son Camden, who she has with NFL player husband Jay Cutler - also revealed her pregnancy cravings during this pregnancy are for getting cravings for plenty of sugar and carbs this time around. "I've been eating a lot of English muffins, and I'm in a tomato phase, so I've been making tomato soup and eggplant parmesan," the 27-year-old added.

Jay has been lending his support to his wife throughout the pregnancy so far, to try and make Kristin feel more comfortable: "He's amazing, he'll take over dinner duty or let me sleep in."