How Long Are Dogs In Heat? Dogs can be in heat up on average for 14–21 days. This is the period in which a dog is fertile and able to get pregnant. Just like how often they come into …

Mar 3, 2025 · “Dogs go into heat approximately every 6 months, and factors such as pregnancy, drug exposures, infectious diseases, and underlying health conditions can affect the duration,” …

Jun 3, 2025 · During your dog’s complete heat cycle, or estrous, she will experience four phases. A typical heat period lasts roughly two to four weeks, with a pregnancy or resting phase …

Mar 12, 2025 · Most female dogs are in heat for 12 to 20 days, during which hormonal shifts prompt ovulation and behavioral changes that attract male dogs. The heat cycle includes two …

Aug 5, 2025 · Canine Heat Cycle (Estrus) Stages & Timeline The Dog Heat Cycle Chart is a week-by-week breakdown of what female dogs go through during their reproductive window. It …

Sep 25, 2025 · Female dogs start their heat cycle young, sometimes as early as six months old, depending on their size. A dog's heat cycle lasts about 30 days, during which she can become …

The length of time a female dog stays in heat can vary depending on several factors such as breed, age, and individual differences. On average, a female dog will stay in heat for …

Most female dogs go into heat about twice a year, but cycles can vary widely, especially in the early years. There are four stages of a dog’s heat cycle: Proestrus (7-10 days) – Initial stage …

Sep 7, 2025 · Dogs of small breeds or toy breeds will begin to show symptoms of heat by six months of age. Medium size dogs experience heat a little later, at around eight months. On the …

Nov 23, 2024 · A female dog usually experiences her first heat cycle around the age of 5 to 12 months, although it can vary between breeds. Each stage of the estrous cycle has its own …