Ovulation test paper and early pregnancy test paper together is not string color. Ovulation test paper is to test the urine luteinizing hormone, pregnant women in the menstrual period after a week clean can start to measure, in the ovulation day will be strong positive, strong positive when intercourse pregnancy odds; early pregnancy test paper is generally delayed a week after the menstrual period, through the test of urine in the amount of human chorionic gonadotropin to check whether they are pregnant, if pregnant, early pregnancy try to appear two bars, not pregnant is a bar. Therefore, ovulation test paper and early pregnancy test paper test different things, that is to say, the reaction occurs differently, usually does not cause string color phenomenon, even if the test together, the effect is minimal.