She is one of the leading ladies of hit show Mad Men, but January Jones has confessed she still worries about making a living.

The X-Men: First Class star, who is a single mum to three-year-old son Xander, told Marie Claire she doesn’t feel secure in her career, after over 10 years of starring in TV and films.

(David Roemer/Marie Claire UK)
(David Roemer/Marie Claire UK)

January said: “I have yet to feel I can make a living from this. I still feel like they are going to find me out and I won’t be able to support my family in five or 10 years. There is this insecurity, because this is the job where you put yourself out there to be judged, so we kind of ask for that insecurity.”

But the 37-year-old beauty does feel secure as a single mother, and doesn’t plan to tie the knot any time soon.

She explained: “I think when I was younger I was keen on having marriage, kids and all that. But as I got into my late twenties and early thirties, all my ideals shifted and having a document to prove love wasn’t really important to me.

((David Roemer/Marie Claire UK)
((David Roemer/Marie Claire UK)

“It’s the relationships that were important, and I still think that way. I mean, if someone came along and was obsessed with marrying me, I would think about that. But growing up, all my family was married and never really got divorced, so marriage was a big deal, it was something you definitely did, so it’s not that I’m afraid of it I just don’t need the tax write-off.”

January also spoke about previous comments she had made revealing she ate her placenta to ease her postnatal depression after Xander was born – insisting there was nothing strange about it.

(David Roemer/Marie Claire UK)
(David Roemer/Marie Claire UK)

She said: “Whenever I felt down, I would take a placenta vitamin and feel better. I didn’t have a fork and knife and eat it like a steak, I took it with my vitamin C and B12. I don’t know if they were a placebo, but they made me feel better. People act like I’m doing some kind of witchcraft.”

The full interview is available in the May issue of Marie Claire UK, out now