why...

Are babies born with fingernails and without teeth? Why do some parents not really know if their kids are or are not teething, whereas my children apparently have chef's knives stabbed into their gums on and off for 7 or more months? Why did Liam randomly get a cold yesterday afternoon, when one second before he was fine with his clear cute little kid voice and then all of a sudden he has a cute stuffy kid voice? Why is my house always at the pit of disorder the night before my mother in law is going to come over? (No, don't answer that one. It's probably always this way but I want to keep humoring myself.) Why am I not sleeping now when I have to wake up early tomorrow?