"It just wasn't on my list of things I needed in my life, but when he asked, it definitely felt right," Hudson said of her engagement that she called a "shock."
Kate Hudson has been in the news for all the right reasons lately, from her pregnancy to her engagement, and the star chatted about all of the above with ET's Samantha Harrisat the 'Something Borrowed' premiere on Tuesday night.
"I popped at about five and a half months, that's when I really started showing," said Hudson.
Rumors of Hudson's pregnancy started swirling in January and the actress announced her engagement to boyfriend Matt Bellamy April 27 during a "Today" show taping with Matt Lauer.
'Something Borrowed' follows Rachel (Ginnifer Goodwin) as she finds herself battling between stealing her best friend's (Hudson) fiancé, Dex (Colin Egglesfield), or possibly spending the rest of her life alone.
Goodwin joked that she had to put a rain check on the real celebration surrounding Hudson's engagement saying, "We did not toast over drinks because she's pregnant but we will later."
"Is there anybody more adorable pregnant than [Kate Hudson]?" said John Krasinski. "She makes it look good."
Click the video to see Hudson and Goodwin react to shots from a recent photo shoot together. 'Something Borrowed' hits theaters May 6.