Pregnancy and menstruation are both preceded by an increase in body temperature, both of which are similar in magnitude, and pregnancy can be determined by blood or urine HCG levels, among other things.
If the body temperature rises after ovulation, there are two scenarios. One scenario is that you have entered the luteal phase, where the level of progesterone in your body rises, leading to a rise in body temperature.
The other situation is pregnancy. At this time, you can use a pregnancy test to measure the HCG level in the urine or go to the hospital to measure the HCG level in the blood to assist in determining whether or not you are pregnant.
Women are advised to take adequate precautions to prevent unwanted pregnancy when they are not preparing for pregnancy. If pregnancy is suspected, please go to the hospital in time for a clear examination to prevent ectopic pregnancy.