In an interview with New! magazine, the party girl, daughter of SHARON and OZZY OSBOURNE, admits she foolishy lost her virginity at a very young age.

Kelly said: "I convinced myself I was pregnant when I was 13 and I hadn't even got my period.

"There are so many rumours and also so much wrong information being passed around, so it is a really important message the World Contraception Day is trying to give out."


Kelly - an ambassador for World Contraception Day - also revealed she gets tested for sexually transmitted infections every three months.

The 23-year-old admitted having unprotected sex in the past and has the tests for her own peace of mind

Kelly, who is currently dating model LUKE WORRALL, said: "I am not the kind of person who talks about my sex life, but I am not afraid to talk about contraception.

"I go three, maybe four times a year to get tested for sexually transmitted infections and most of the time I don't even need to. I just go for peace of mind."

Recently-married SCARLETT JOHANSSON has previously said that she has two HIV tests a year, and said that anyone who did not was "disgusting".

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