Conception: The Facts

There are two basic types of home pregnancy tests, one which uses a test strip or dip stick, and one which uses a collection cup with a test device. Both tests detect the presence of hCG. It is best to test the first urine of the morning, which is the urine that has collected in the bladder overnight. Most doctors recommend that you wait until the first missed day of your period before taking a urine pregnancy test. However, several factors can affect the accuracy of an early test. The days of a woman’s menstrual cycle and ovulation change each month. The exact day of implantation is not always known. Each home pregnancy test kit has a different sensitivity to hCG. Test results are more accurate if you wait until one week after a missed period.