Ovulation strong positive refers to the high level of luteinizing hormone in the urine at this time, when ovulation is imminent in 24-48 hours. Women who wish to get pregnant can have intercourse during this period, the chances of getting pregnant will be significantly higher, while at other times due to the ovaries do not ovulate, the test paper detected a weak positive or negative situation, intercourse is not pregnant. But with ovulation test paper to detect a strong positive there are certain special circumstances, there may be ovarian non-ovulation, such as unruptured ovarian luteinization syndrome, so in order to monitor ovulation is best based on gynecological ultrasound dynamic detection of follicle size. Generally, the diameter of 2cm or so to be able to occur ovulation, ovulation ultrasound review to see whether the follicle is discharged, ovulation within 24 hours of the egg’s vitality is good pregnancy chances are also high. Test strips to monitor ovulation is simple and easy to operate, can be started on the 10th day of menstruation, preferably daily at a fixed time, without morning urine test.