negative but still positive?!

Libby
Is this just me?! 
I'm 37 days late but still every pregnancy test I've taken ( 7 total ) says that I'm not cooking anything in my baby oven?! 
Someone smarter than me tell me whats going on!!! 
The medication I'm on to control my crazy is a class C medication and I dont want to take it if there's a possible baby!!!! 
Feel my frustration!!! 
Someone!!! 
PLEASE!!!!