A high body temperature at the end of ovulation is common, but it doesn't always mean something is wrong. Under normal circumstances, the increase in body temperature during ovulation is caused by the body preparing for pregnancy. However, if your body temperature continues to rise above the normal range, you may have some health issues to worry about.

Some common health problems can cause a persistently elevated body temperature, including:

1. Febrile cold: Febrile cold is a common viral infection that may cause symptoms such as headache, cough, sore throat, fatigue, etc. If your temperature continues to rise, you may need to seek medical help.

2. Bacterial infection: Bacterial infection may also cause fever and may be accompanied by other symptoms, such as cough, sore throat, fatigue, headache, etc.

3. Cancer: Some cancers may also cause the body temperature to continue to rise, such as lung cancer, breast cancer, etc.

If you find that your body temperature continues to rise and exceeds the normal range, you should seek medical help promptly. Your doctor can help you determine the cause of your elevated temperature and develop an appropriate treatment plan. Also, if you feel unwell, you should seek medical help promptly to avoid any health problems.