Khloe Kardashian has blamed pressure from her family for her inability to conceive with husband Lamar Odom.
In last night's episode of her reality show Khloe & Lamar she lost her temper with Kim Kardashian when her big sis suggested that she could try IVF treatment.
Khloe snapped: "Yeah, I do want to have a baby. Being proactive with it is one thing. If it's meant to be, it’s meant to be.
"Maybe when I'm away from all of you stressing me out a baby will come. Everyone gives me s*** about not being pregnant. Stress makes people not get pregnant."
And basketball player Lamar also vented his frustrations in the same episode, admitting that the news about Khloe's sister Kourtney falling pregnant again had given him a twinge of jealousy.
He said: "I was like, damn, I wish it could be me, but just for a split second. Damn, they get to have another baby and I don't."
Khloe recently denied rumours that she and Lamar were to split up.
Watch MTV News on the hour every hour on MTV - Sky Channel 126 and Virgin Channel 134