Former Doctor Who actress, Billie Piper has spoken out on how she hasn’t found motherhood as easy as she expected to.

Billie gave birth to her son Winston three months ago and has talked to Hello about how being a mother has affected her since.

“I had absolutely no idea how tiring being a mum was – or how hard mums have to work,” she told the magazine.

Billie added: “I’ve worked some sh***y hours in my life, but these are the toughest I’ve ever had.”

But the star also talked about the joys of motherhood: “That feeling of unconditional love… I used to think it was so cheesy when people said that before, but it’s something I finally understand.”

The 26-year-old went on to explain that whilst she hates exercising she is intending to get back in shape at some point.

“As far as I am concerned, exercise is the most boring thing in the world,” she said.

She went on: “The diet, the regime – it will start. It will be quite intense. It’s boring and hellish, I’m sure, but if you’ve got to bare your a** on TV, you don’t want it to look bad.”