Pregnant or Thyroid Problems?

Well, there is still no sign of that "monthly curse" telling me I am not pregnant.  I shouldn't be pregnant, but that doesn't mean that everything standing in pregnancy's way didn't fail at the right time and let a little swimmer in!  Am I going to be starting over with sleepless nights, personalized baby gifts, and diapers?

My husband thinks it is thyroid-related and not a pregnancy.  Perhaps changing me from compounded Armour to regular Armour messed me up this past month.  I've heard that the reformulated Armour isn't as good as the original Armour. 

Only time will tell (or a pregnancy test, which I haven't bought yet).  I'm chicken.