Performing a urine test prematurely.
For ultrasensitive systems (10–15 mIU/ml), the earliest completion date is 4–5 days before the start of the delay. Moderately sensitive (20 mIU/ml) - recommended to be carried out no earlier than 1-2 days before the delay. Tests with a perception threshold above 25 units - after a delay.
When a woman is in a hurry and violates the deadlines specified in the instructions, there is a high probability of seeing a pale second line on the test. In most cases, this indicates pregnancy, but the level of the hCG hormone is still low and does not give a rich color as a result of a chemical reaction.
An important feature: as a rule, when the test is repeated after a couple of days, the expectant mother will notice a clear or at least brighter stripe.