I really don't know what's wrong with my cat. She's been acting sluggishly since yesterday. She use to jump to welcome me whenever I return from outside. But since yesterday, she's been too cold. She wouldn't play at all. Is my cat sick?
The age of a dog’s first heat cycle varies greatly between breeds. Toy breeds can come into heat for the first time as young as four months, while large and giant breeds may be as old as two years before experiencing a first heat cycle. On average, most dogs will have their first heat cycle between six and 15 months of age.