Emmerdale fans think they have figured out Nicky's secret mum's identity on the hit ITV soap. Only recently, it was revealed that loveable Home Farm nanny Nicky is Caleb Milligan's son, which viewers had predicted, and Frank Tate was in fact Caleb's dad. Caleb is out to bring down his dad's ex-wife Kim Tate and win back his birthright Home Farm, enlisting son Nicky to fake an engagement with Gabby Thomas.