Behavioral problems with pregnancy

Does anyone know when a cat is pregnant if she cries or not? My vet told me my cat was pregnant .... but she is crying like she did when she was in heat..... just a little different sounding Is this something they do????????? OR could my vet have been wrong and she is in heat and not pregnant Any information would be so appreciated......

When I had pregnant cats-they sounds and movements they made when they were in heat stopped. Gestastion is about 62-65 days-unfortunately when Grizzly was spayed she was 1 mo pregnant and neither I or the vet knew. I don't know if there are cat pregnancy tests???

She stopped for about 3 weeks now she started making strange noises again and seems to be in heat. I had her to the vet and he thought she was pregnant..... I guess I will be going back to the vet!!!!!!!!!!!!!!!!