She was staying with a male cat for almost a month now but she don’t want him to get near her and always hissing so I don’t know if she’s pregnant or not.. some said she is pregnant.. Glad if you helped <3
Were you purposefully breeding her? Since she is not spayed and was with a male cat it is very likely that she is pregnant. Her sides should begin to swell around the fifth week.
Her nipples won't start to pink up until week 2-3. I would definitely recommend you spay and neuter both cats ASAP! There is a huge overpopulation of cats and the more cats born means more cats are put down in shelters. If you want kittens, you can adopt at your local animal shelter.