Kim Kardashian isn't giving up on conceiving a second baby and is open to exploring all options - including surrogacy. 

"Kim has been undergoing IVF," an inside source told Us Weekly. "It's causing problems with her body." 

On Sunday's episode of "Keeping Up With The Kardashians" fans are expected to learn that Kardashian's implanted embryo did not take, according to Us reports. 

Kardashian previously joked on the show that she and her husband, rapper Kanye West, have sex 500 times a day trying to make their daughter, North West, 1, a big sister. 

The 34-year-old reality star has been talking about trying for baby number two for nearly a year, but so far she's had no luck. 

"Trying for baby number two is just not fun like baby number one ... I'm like, 'I'm ovulating in five minutes! Get over here!'" Kardashian said in March on KUWTK.  

Hopefully North West gets some news about her her little brother or sister soon!