Books with title Daisy, Dad and the Huge, Small Surprise

Welcome to my world: it's weird, but kind of wonderful...Ally knows love makes you do funny stuff, but it doesn't explain Grandma's behaviour. Sure, she's got a lot on her mind with the wedding in just a few weeks, but what's with all the secrecy? And Grandma's not the only one bitten by the love-bug. It seems Ally's little brother has a crush on his new teacher - trouble is, so does Dad ...Eek.