The 19-year-old singer-actress recently got engaged to the 22-year-old actor and is in no hurry to get pregnant, though she eventually wants to raise a large family together as she has herself been brought up with a lot of brothers and sisters, reported Femalefirst.
"She really wants a bunch of kids, since she has a lot of brothers and sisters. She wants the same thing when she becomes a mother. She wants the kids to be all hers, and it might be a little while after marriage for her to start because she really loves her body and wants to spend some time being the 'Hot Wife," a source said.
The former "Hannah Montana" actress has been getting in some practice by looking after Liam's brother Chris' new daughter, India Rose.
"She has been able to quell any desires about being a mother by helping out with Chris Hemsworth's baby India Rose. She is all about babysitting whenever they need it. It hasn't sparked her need for a baby for herself any faster, but rather has made her happy that she is in the glow. The baby can come later," the source added.