It is recommended to start testing on the 10th day of menstruation and test once a day with ovulation test strips. If you find that it is gradually turning stronger, you should increase the frequency of testing, preferably every 4 hours, and try to test until you get a strong positive, and catch the moment when the strong positive turns weak, ovulation happens when the strong positive turns weak. If you find that the egg is about to break out of its shell, you have to hurry! You must ovulate within 24 hours, and you should not drink water 2 hours before taking the ovulation test. Do not use the morning urine test, it is best to test at 10-20 o’clock. After the strong positive turns weak, continue to test the ovulation test paper, do not be afraid to waste ovulation test paper, until the test is negative, this time you can rest for a few days, to 10 days after ovulation and then start to test the ovulation test paper every day, if you find a strong positive, the hope of good pregnancy is greater, you can use the early pregnancy test paper test.