|Peaches with her baby boy and father Thomas Cohen|
The 23-year-old star - who has six-month-old son Astala with husband Tom Cohen - suffered from polycystic ovaries so knew conceiving would be difficult, and then experienced further problems three years ago when she was rushed to hospital after an ectopic pregnancy.
Speaking of her first diagnosis at 17, she told ELLE magazine: "I was really upset because I always knew I wanted kids and then I was told I would need major intervention if that was to happen."
Of her ectopic pregnancy, she added: "I woke up in the night in the worst pain. It was like something was ripping me apart. I had no idea I was pregnant.
"I was taken to hospital and they discovered what it was. I was told if I had left it even three more days I would have died. But I had to have an operation and the doctor told me he'd have to remove my fallopian tube. I was crying and begging him not to. When I woke up, he told me he'd saved the tube but it was badly damaged and my chances of having kids had gone from slim to almost non-existent."
Peaches says her ordeal destroyed her relationship - though she wouldn't reveal the man's identity - and left her suffering from post-traumatic stress disorder, and she even considered freezing her eggs in a bid to protect her fertility.
She said: "Afterwards, I suffered from post-traumatic stress. My relationship ended because of it and for me it was just more sadness to carry.
"I was thinking about freezing my eggs and all these things, but you have to face the idea you just won't have children."