The 31-year-old actress - who, earlier this year, tragically lost the baby girl she was expecting, five months into her pregnancy - has reportedly told friends she and boyfriend Thom Evans are keen to conceive and start a family together.
A source told Closer magazine: "Kelly says Thom`s been her rock this year and she`s totally in love with him. They`re going to try for anotherbaby, planned this time.
"She says she`s learnt so much about herself as a person this past year and she is going with what she feels is right. She`s not interested in waiting until she gets married, she just wants to get on with it! She says she`s going to let her heart take over from her head for a bit."
When Kelly fell pregnant, she admitted it took her by surprise as she and Thom hadn`t really planned it.
She said: "It wasn`t a plan, but if it happened, it happened. We were dating."
She has said she knew former rugby player Thom was `The One` as soon as she met him.
The `Piranha 3D` revealed: "I immediately felt he was `The One` and I have never felt that before. That has something to do with my age. I don`t want to waste my time with someone I wasn`t sure about ... it was Thom.
"I had been single for a long time - for six months - but I wasn`t thinking about meeting anyone or settling down. Actually, I was thinking I`d be single for a while longer, which was fine by me, because until then I`d always been in a relationship."