we got 2 kittens in feb. they have had jabs asked vet when to get them spayed we had/ have appointment in begin of Nov as vet said they'd be old enough then. now 1 is chiriping and from googling I think its in heat. fuck .[shock] they are indoor cats. will it be more difficult to spay now. her sister isn't. help[confused] [confused] [confused] [confused]