Whitney Port can't believe how much her life has changed since she welcomed her son into the world

Speaking about motherhood, she gushed to E! News: "It's been amazing. It's been, I mean ups and downs ... it's obviously an overwhelming thing, your whole life changes so it's a lot of adjustment. But my son's great."

Meanwhile, Whitney - who has Sonny with her husband Tim Rosenman - previously admitted she gets "anxiety" about taking her son out of the house.

She shared: "All you moms have been there...You're driving on the freeway with your brand new baby in the back and all of a sudden they're hysterical. You don't know what to do, you can't pull over, you think they're choking, you're freaking out! Well, hopefully you've all been there, cause that was me a couple weeks ago and it scarred me and I need some help!

"Taking Sonny out has proven to be very scary for me. Not only does the preparation and packing give me massive amounts of anxiety but the amount he hates the car seat is enough for me to never want to leave the house, like EVER! ... I am taking him out today ( because I have to, not because I want to) (sic)."

And the blonde beauty has been struggling to breastfeed.

She confessed: "I totally went into this whole thing with the intention breastfeeding, and I really wanted to breastfeed. I'd heard that it obviously doesn't come easy to a lot of people, but I was willing to try and still am willing to try.

"I thought I was doing really well and the nurses said that the latch was good. But after about 24 to 48 hours of doing it, it just started to get so incredibly painful. And we came home and I just hit a breaking point and said, 'I can't do this. It feels as though someone is slicing my nipples with glass.'"