Scherzinger began dating Hamilton in 2007. The two were steady for three years before splitting and reuniting a couple of times. They last got back together in March this year, reported Contactmusic.
"Our biggest challenge is long distance, but I feel like I'm mostly here in the UK, even though my home is in the US," she said.
Scherzinger added that she is keen to have children with Hamilton, but only at the right time.
"I come from a big family and I'm a family person and one day, when God wills it, I will have a family but in the right time," the singer said.