Unexpected Pregnancy?

Well, if my period doesn't start soon, I am going to have to take a test to see if I am a mommy again.  As my youngest gets ready to start kindergarten, the thought of starting over with diapers, personalized baby gifts, high chairs, and sleepless nights is a bit scary. 

It's a week late.  It has me a bit worried, but hubby isn't.  He thinks it is thyroid-related because my medication was changed a month ago.  The chance that he's right not to be worried is very high but I'm still going to worry until I start or a test tells me otherwise.