Is it better to take a pregnancy test in the morning if you think are very far along?

Pregnancy tests detect the presence of human chorionic gonadotropin (hCG) in your urine. hCG is a hormone produced by the placenta after an egg has been fertilized and implanted in the uterus. The level of hCG in your urine increases as your pregnancy progresses. In general, morning testing is advised because the first morning urine is typically the most concentrated. This is because you have not been drinking or urinating for several hours, so the hCG in your urine is more likely to be detected by the pregnancy test. While urine concentration tends to be lower in later pregnancy, it may not matter as much because there is typically a very high amount of hCG in your urine during late pregnancy.