Taking progesterone has no effect on ovulation test paper. Progesterone is a progestin hormone, and ovulation test paper detects the concentration of luteinizing hormone in a woman’s body. When the follicle is developing, the ovulation test paper will show a weak positive response, and wait until before ovulation, it will show a strong positive response. If the ovulation test paper is detected as strong positive, there will be ovulation after 36-48 hours, if there is a requirement for fertility, you can have intercourse during this time, if it turns from strong positive to weak positive, then the ovulation has been more than 6 hours. If the infection is within 24 hours of ovulation, intercourse can still be pregnant, more than 24 hours follicles have melted, there is no function of fertilization, so again intercourse will not be pregnant.