PLEASE HELP!!!!!!!

hey my name is paul and i a beutiful cat named samantha she has been acting very stange lately she hasent been wanting to eat lately and all she does is sleep she also has diharia and she is also throwing up i want to take her to a vet but i cant afford it my wife tells me that she is maybe pregnant is it normal for them to throw up and get diharia so if theres somebody that could help me with my question i would appreciate it.

This likely isn't pregnancy.
   
It could be one of several illnesses.
   
She does need to see the vet.
   
If she's not eating, she's EXTREMELY sick.
   
Call your local vets & find one who will take payments over several months & get her in there now.
   
If you love your cat, get her to the vet somehow.