Injecting or taking HCG hormones and other AIDS drugs can affect pregnancy. Results can be affected by menopause, taking hormone or steroids, birth control pills, polycystic ovary syndrome, hyperthyroidism, and endocrine disorders. The precision rate exceeds 99% when test the typical hCG level by this testing kit. If you doubt, please use morning urine to retest and confirm. The urine sample must reach the upper hole so that the sample can be fully absorbed. A reliable test is a must. Nothing is more exciting than that welcoming the coming of a new baby.