nesting myths...

So wiTh my first pregnancy 11 years ago, I distinctly remember having a strong urge to clean and organize and wash baby clothes and prepare, 3 days later, I gave birth to my daughter. With my son,4 years later, I don't recall there being such a strong urge to get things in order. Now 7 years since my son was born, pregnant with a little girl, due in 30 days.... I AM SO EXCITED to get off work and get home and clean and organize....  has anyone else felt this urge or noticed that the nesting myth is actually true? how long after your urges did your labor begin?