Even with ovulation timing and good breeding management, pregnancy does not always result. The #1 reason for perceived “infertility” is improper timing for natural breeding or other insemination technique. After two attempts with good timing without diagnosed pregnancy, further evaluation is often indicated. There are many things that can result in poor conception rates, which include uterine problems, contagious disease, stress, issues with the stud dog, and others. Diagnostics such as physical examination, discussion of at-home care, uterine cultures, or uterine biopsy may help to further understand a cause for infertility.