On the morning of the attack Patton's Diaries state that he was at the French Tank Training School at Champlieu, 75 miles away. Ten days later, after the offensive had stalled, he visited British Tank H.Q. at Albert, 30 miles from Cambrai.
Reproductive Maturity. For the most part, kittens begin spraying urine when they hit reproductive maturity. This stage varies in cats, but can range anywhere from about 4 months to just over a year. Some kitties are early bloomers and others are late bloomers, similar to humans.
Actually kittens can start to reproduce at 4 months old my vet told me. They can be in and out of heat within 10 to 15 days. Different times for different cats. Just like humans ovulating, not everyone does this at the same time either. I would think you could have her spayed anytime you want to and it wouldn't matter if she was in heat or not.