A lower body temperature 7 days after ovulation cannot be diagnosed as pregnancy or not, you need to go further to the hospital to take a blood test for HCG to confirm whether you are pregnant or not. Lower body temperature 7 days after ovulation can not diagnose pregnancy, the time of ovulation can not be determined by anyone, temperature changes may be related to minor activities, mood, climate, late night and other aspects, can not be occasional rise or fall to diagnose pregnancy. Blood test for HCG to confirm the diagnosis: When it is more than 7 days after ovulation and 10~15 days after sexual intercourse, go to the hospital to have blood test for HCG, which can accurately confirm whether you are pregnant or not. If you use early pregnancy test strips, you need to wait until about 3~10 days after the wrong period to confirm the diagnosis, and the longer the time, the higher the accuracy. If your body temperature drops 7 days after ovulation, it is best to go to the hospital and have your doctor make an individualized test plan based on your specific situation to determine if you are pregnant.