Elevated body temperature 17 days after ovulation may be pregnant, but a single temperature increase can not prove that it is pregnant, it may also be caused by other reasons. Women will form the corpus luteum after ovulation, in the corpus luteum stimulation will make the basal body temperature rise, usually lasts about 12 days, such as no fertilization success basal body temperature will drop, followed by menstruation. After ovulation body temperature rise 17 days is likely to be pregnant performance, because the female body after pregnancy estrogen and progesterone levels increase, which will lead to the basal body temperature continues to rise, but the temperature can not be proved to be pregnant. You can combine blood HCG or use pregnancy test to determine whether you are pregnant. If you are not pregnant and your temperature has been elevated for 17 days, you should be alert to whether it is caused by colds and flu, and you should combine it with routine blood tests to clarify the cause of the elevated body temperature and regulate it.