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Pregnancy

Overview

Pregnancy is a normal physiological condition lasting approximately 63 days in dogs and cats, during which offspring develop within the uterus. While not a disease, it places significant metabolic demands on the mother and carries potential risks during labor.

Key / Hallmark Signs

  • Swollen abdomen
  • Weight gain
  • Nesting behavior
  • Milk production
  • Vaginal discharge

Common / Supporting Signs

  • Increased appetite
  • Vomiting
  • Behavior change
  • Lethargy

What to do?

This condition requires veterinary attention.

If your animal shows the Key or Common signs listed, please visit a clinic immediately.

Report Case / Get Help

Medical Details

Transmission

Pregnancy occurs through mating during the animal's fertile estrus cycle. It is a biological process and not a transmitted disease.

Progression & Stages

The gestation period is divided into three trimesters. The first typically shows few signs; the second involves fetal growth and weight gain; the third is marked by distinct abdominal enlargement and nesting behavior as labor approaches.

Diagnosis

Pregnancy is confirmed through abdominal palpation around day 28, or ultrasound to assess fetal viability. Late-term X-rays are the gold standard for counting the number of fetuses to ensure all are delivered safely.

Treatment Protocols

Management involves high-quality nutrition formulated for growth or lactation. Regular prenatal checkups are essential. Medical intervention is reserved for labor complications (dystocia) or cesarean sections.

Prevention

The only definitive prevention for pregnancy is spaying (ovariohysterectomy), which removes the reproductive organs. Preventing interaction with intact males during heat cycles is also effective.

Prognosis

A normal outcome is expected for most healthy pregnancies. Risks increase with breed-specific complications or if the mother is in poor health.

Medical References

  • Merck Veterinary Manual

Medical DisclaimerThis information is for education only and does not replace examination, diagnosis, or treatment by a qualified veterinarian.