Kim Kardashian, who's pregnant with her first child, says pregnancy is physically draining and harder than she had ever imagined it would be.
"When people say that pregnancy is fun and they love it, I would have to disagree," Kardashian told ET. "From this stage on, it does become easier and funner, but it's adjusting.
"Even my sister [Kourtney] has made it look easy, but it's not as easy as people think. It is a lot, a little, painful. There are growing pains, but I heard it's all worth it, so I'm looking forward to that."
Kim, 32, says she's napping a lot as a result of pregnancy-induced fatigue, but so far hasn't had much morning sickness or crazy cravings.
Kardashian, whose divorce from NBA star Kris Humphries is still pending, is happily dating musician Kanye West, 35. Kim is excited about becoming a mom, and says pregnancy is a blessing.
"We feel so blessed and lucky and wish that in addition to both of our families, his mom and my dad could be here to celebrate this special time with us," Kardashian blogged. "Looking forward to great new beginnings in 2013 and to starting a family."