Haylie Duff Is in Love With Someone Who Isn't Her Fiancé, but Who Could it Be?!

She is already obsessed with her new daughter Ryan

Motherhood is sitting well with first-time mom Haylie Duff!

Hilary Duff's sister welcomed her first child with fiancé Matt Rosenberg Monday, and she has already fallen more in love with daughter Ryan than anyone else. The Real Girl's Kitchen host tweeted, "I honestly didn't know I could love this hard! Whole new level.  Ryan has me on lock! Haha." She also included an angel emoji, a heart emoji and a baby emoji.

A rep for Haylie told E! News Monday, "Both mom and baby are doing great! Haylie and Matt are thrilled to finally meet their baby girl and become a family of three." Prior to baby Ryan's delivery, E! News learned that Haylie would enter the hospital Monday morning to be induced.

Hilary's older sister has been vocal about her pregnancy since announcing to reporters that she would be having a daughter and even spilled the beans on what she craved throughout her nine months—and it may surprise you! "I drink a lot of green smoothies. I think I've craved health food, which is weird, and then the occasional mac and cheese," she confessed.

She also tried to stay very active throughout her pregnancy, which she admitted made her fiancé a little nervous. "He's like, 'Don't push yourself too hard.' I'm like, 'I got it! I'm fine.' I'm just trying to move. Go on walks. I'm not trying to put too much pressure on myself either way," Duff explained.

She also gave some insight into her pregnancy exercise regime, explaining that she was a big fan of spin class. "I did SoulCycle through my whole pregnancy and I go on walks with friends," she told Racked Miami. "You know, I've worked through most of it shooting season two of The Real Girl's Kitchen. So I've been active in general. I've tried to not go too maternity, but at a certain point you've got to have room, you know?"

Even though she and Matt have put wedding planning on hold, they're both excited that Ryan will be at their nuptials! "We still talk about things we want to do [for the wedding], but it's a big change with the baby coming. We're just trying to focus on one thing first and then we'll do it."

Congratulations to the new family of three!