"I have been on the pill my entire life ... I went off the the pill to get tests done and it turns out everything wasn't alright," the 34-year-old said.
She said she was getting adult acne, having mood swings and really bad cramps and said she felt "off".
"It's really painful," she said. "There are difficulties getting pregnant. My doctor advised me to go back on the pill."
She said she might have to do IVF but she also might fall pregnant naturally too.
"Being 34 I have been committed to my career but it does make me a bit sad as ... [pregnancy] has always been in the back of my mind," she said.
Ash, who has been dating her boyfriend Pete Ferne, 35, since 2017, admitted she now feels forced to choose between her career or having a baby.
"All I want to do is keep going leaps and bounds in my career but now I'm like, what do I do? Do I think about my career or do I think about having a kid?" she added.