Kim Kardashian and Kanye West
Kim Kardashian and Kanye West are reportedly preparing to welcome a baby boyReuters

American reality television star Kim Kardashian is reportedly expecting her second child with husband Kanye West.

According to OK! magazine, the 34-year-old Keeping Up With The Kardashians star and the 37-year-old rapper will welcome a baby boy.

"She's pregnant," an insider told the publication, according to Hollywood Life. "I've heard that she's passed the 12-week point, but that she and Kanye aren't going to confirm it for at least a few more weeks."

"She's really nervous about jinxing it, with everything they've been through," the source added.

Kim allegedly spent $230,000 on IVF treatments and she is afraid something will go wrong with this pregnancy.

"Every time they were told it hadn't worked, Kim would go home and cry. This process definitely hasn't been a walk in the park," the source added. "She's being crazy protective, she's Googling everything. She doesn't want to risk doing anything that could damage the pregnancy. If something went wrong, especially something she could have prevented, she'd never forgive herself."

Kanye, who has 21-month-old daughter North West with Kim, is excited that his wife is pregnant with a son.

"To say that he's happy that she's carrying a boy is an understatement," the insider said. "One of each is perfect for them."

Meanwhile, Kim has previously revealed that she is desperately trying to get pregnant.

In the season 10 premiere of Keeping Up With The Kardashians, Kim told sisters, Khloe Kardashian and Kendall Jenner that she and Kanye "are having sex 500 times a day".

"The doctors said he thinks I'm having sex too much," Kim told E! News. "He said one time is more powerful...so we've tried everything."

"I've done everything so perfect to try and get pregnant. There's a list of things you shouldn't be doing and I was perfect for eight to 10 months and now I don't understand.

"I'm going to do everything that I want to do and that includes going platinum. Hopefully I will get pregnant doing all the wrong things. I'm totally changing my tactics."

"Literally teenagers on meth get pregnant in two seconds. It's crazy. When you don't want to be pregnant, it happens," Kim joked.