Britney Spears' sister JAMIE LYNN has quashed fears she's not ready for motherhood by enlisting her mum LYNNE to teach her the art of bringing up baby. The 16-year-old announced her pregnancy last month (Dec07), sparking concerns she's too young to raise a child. However, Spears insists her mum will be on constant call to guide her through the stress and strains of looking after a newborn. She tells British magazine Heat, "My mom will be helping me so much. I have to take responsibility and do a lot of it myself, but she's going to have to teach me so much. I'm sure it'll get hard at times. I'm sure I'll be grumpy. "I love babies. I have a great mom and she has raised three kids, so if I take lessons from her, I think it'll be great." Lynne Spears was due to release a parenting book last year (07), but it was postponed when Jamie Lynn revealed she was expecting a child with 19-year-old Casey Aldridge.