1. Collect urine in a clean and dry container. Do not use morning urine. The best time to collect urine is from 10:00 am to 8:00 pm. Try to use urine sample at same time eery day. The urine should be reduced 2 hours before collecting urine. Ingestion.2. The test strip be immersed in urine with one end of mark line. After about three seconds, it be taken out and laid flat for 10-20 minutes. The result be read within 30 minutes.The depth of test paper inserted into urine should not exceed MAX mark line.Normal women oulate eery month. After an egg matures in oary, it is excreted from oaries and transported to uterus ia fallopian tubes. The pregnancy process is formed by a egg in fallopian tube combined with sperm. Sperm can surie for about 24-72 hours in female reproductie tract, while an egg is fertilized only about 24-36 hours after oulation.Women should first determine their own menstrual cycle before testing. The algorithm is a cycle from first day of menstruation to day before menstrual period (the first day of first blood day). Most women oulate in menstrual period. The first 14 days or so, so 2-3 days before oulation and 1-2 days after oulation is easy to receie pregnancy, that is, 4-5 days before and after oulation day is estimated to be susceptible to pregnancy, so it should be tested regularly after starting test.Model Number: Oulation Test StripItem Type:Feminine HygieneStage: Pre-pregnancyFragrance type: no fragrance typealuminum foil bag packaging (with desiccant to protect against moisture)Colour:PinkMaterial:Aluminum bagsSize:10.5x5.5cmPackage Contents:1 pack x (90 pieces) Oulation Test StripOnly aboe package content, other products are not included.Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.