Kim says her surrogacy experience this time around isn't like her experience with Chicago, especially since she's more aware of what to expect.
"It's a different experience for sure, this situation is different," she tells ET. "I love my surrogate, we have a really good relationship. I really trust her and I definitely see, like, the first time that I went through it, I was a little bit more anxious, and texting more and calling more, and I feel like my surrogate this time around, really is such a protecting person and I really trust that in her."
"So, I feel really calm and at ease," she continues. "I don't know if it's a fourth kid thing or, we've been through the surrogacy before, you just get a little bit more calm as they go."
The Kim Kardashian West Collection with Carolina Lemke eyewear launched on Tuesday and consists of seven styles, with more coming soon. It's available at carolinalemke.com.
"I like to change up my look all the time so to have so many options," Kim tells ET about the wide variety of the sunglasses collection. "We have over 20 styles that are going to be launching before summer. I got so into it that I couldn't choose. I just had to have more styles because they're so affordable, you can mix it up more."
Tune in to Entertainment Tonight on Tuesday to hear Kim open up about forgiveness.
During Sunday's season 16 premiere of Keeping Up With the Kardashians, Kim actually admitted to sister Kylie Jenner that she was "low-key freaking out" about having another baby.
"I didn't think it was going to happen," she said. "I thought like, 'Oh, it probably won’t even take.'"
"Their first time with surrogacy went so well, they decided to do it again," the source said. "The couple is excited to welcome such an incredible gift in 2019. They’ve also talked that after this child, they are most likely done having kids."