puppy coming into season

Hi everyone a friend of mine got a female staff the same time as we got sasha the person who they brought her from said she was roughly the same age as sasha too. She seems to do everything a few weeks before sasha ie behaviour, digging teething etc. A few dsys ago they noticed a few drops of blood on her bedding checked paws mouth etc and have seen nothing since and she has been off her food for 3 or 4 days too she is supposed to be 22 weeks the same as sasha could she be coming into season. Also they are now wondering if she may be a staffie cross as her ears are now mostly standing up apart from the tips is this possible in a staffie I said that I would ask as sasha ears never have ?????

most definitely , the first season can come quite early

Would it be just 1 or 2 spots then nothing though and how long are they in season for because taking her out for walks and stuff