The 26-year-old and fiance Jay Culter welcomed son Camden seven months ago and although there were tough moments, Cavallari says she loves being a mother, reported Access Hollywood.
"There are tough moments but it's the most rewarding job I've ever had. Cam is seven months now and every day is so exciting. He is such a sweet and happy guy and makes every day wonderful," she said.
"Jay is the best dad, I've had to travel for work in the past few months and Jay has been home with the baby. We don't have a nanny, he is such a hands on dad. One of his sisters has a one year old boy so that has helped," she added.
"We have a wedding planner, I'm very involved and so is Jay, it's been a fun process for us. We've managed to keep the date a secret. Our list is small, 160, our closest friends and family so if the date got out it would be a bigger problem," she said.