04/19/2011 at 02:00 PM EDT
When the news first broke that Kate Hudson
was expecting a baby
with British rocker Matthew Bellamy, many wanted to know more about him
And now, Hudson herself has opened up about their love story, including sharing how they met and offering a peek into what led to her surprise pregnancy.
"You always hear people say, 'I never thought this would be the person I would end up with,' but I don't think you ever really know," Hudson, 31, says in the May issue of InStyle
, on newsstands April 22. "I love that Matthew knows how to express himself. He shows his love. He communicates."
The musically-inclined couple met for the first time at the Coachella music festival, Hudson says.
She was "watching Radiohead's Thom Yorke with a guy I knew from high school, who introduced me to Matthew," says Hudson. "We realized we had met a few years earlier, in Australia. Then I got distracted and said, 'I've got to find my friends; I don't know where they went.' He just looked at me and said, 'Come on, I'll take care of you.' That's when I went, 'Wait a minute, who are you?' "
Bellamy, 32, lead singer of the band Muse, eventually asked Hudson for her number, and the rest, as they say, is history. But what kept her interested in those early days?
"Matthew was polite and immediately protective, which for somebody like me who's all over the place – one minute I'm over here and the next I'm over there – is important." Plus, she adds, "He is just an amazing person."
That said, Hudson didn't feel the thunderbolt that assured her that he was "the one."
"In the beginning I felt like, okay, this is going to be heavy. Am I prepared for this? Because it had been a while, and I wasn't looking for that," she tells InStyle
. "But I just couldn't stay away. I wanted to talk to him and be with him all the time. On our first dates we would take long walks and talk the entire day."
Soon enough they were in love – and, says Hudson, pregnancy seemed a natural progression, even though it wasn't exactly planned.
"Well, it wasn't like we didn't know what we were doing," says Husdon with a laugh. "There were no ovulation kits involved. We were tempting fate, and it worked."
Adds Hudson, who has a 7-year-old son Ryder with ex-husband Chris Robinson: "I didn't think I was going to have another kid until I was maybe 33 – that was in the back of my mind before I met Matthew. But we were so in love when it happened, it was just so exciting for both of us."