When can you ignore a negative pregnancy test
The first question that comes up in mind is you going to trust the results? The problem is that a home pregnancy test is not looking inside your body to see if the fertilization process took place. Instead, the home pregnancy test measures the pregnancy hormone known as human chorionic gonadotropin, or hCG for short. If you get a negative pregnancy test, it means that you don’t have ENOUGH hCG to register on the test.
To understand when to ignore a negative pregnancy test, you need to know how hCG levels increase and what the process in conception actually is. When an egg is fertilized and implants in the uterus, hormonal processes in your body change and start to produce hCG.
That can happen several days after you have sex. It can take as long as six days for the sperm to fertilize an egg, and then it can take as much as two more days before that egg travels from the production of hCG is significant enough to register.
So, in general, you can ignore a negative pregnancy test if you take it too early. While you may be able to detect a pregnancy as early as the first or second day of your missed period, for many women it is not until they have completely missed their period that they will register on a pregnancy test.