Kristin Cavallari

Kristin Cavallari

Kristin Cavallari isn't nervous about giving birth for the second time.

The former 'The Hills' star and her husband Jay Cutler, who already have 19-month-old son Camden, are set to welcome another baby boy in the near future and she feels much more relaxed about going into labour this time round.

She explained: "The first time, you're anxious, you're nervous, you're excited, you have so many emotions. It's like the closer you get to your due date, you're ready but you're also not quite ready, so you don't mind if the baby stays in there. But this one, I'm like, 'Let's get him out here, I want to see him, I just want to hold him and see what he looks like.' I'm just really excited more than anything."

But Kristin admits she is very "nervous" about how Camden will react to their new arrival.

She said: "I'm nervous. I don't want him to feel like he's being replaced. I know the first few months are going to be hard when I'm breastfeeding all the time. We're just going to try to be so careful to make sure he's still getting a lot of attention, knows he's still extremely loved and this baby is in no way taking his spot."

Kristin's NFL star husband has a reputation for being a tough guy on the field, but she claims he is very different at home.

The 27-year-old shoe designer told PEOPLE.com: "He's such an amazing dad. I honestly couldn't ask for a better dad. He's really sweet with Camden. He plays with him all the time. He's on the floor with him rolling around and goofing off."

She added: "Jay really does have a very sweet side, and he only lets a select few see that. But I don't think that's necessarily a bad thing."