There are several reasons for pregnancy test blank

Pregnancy test blank, there may be a wrong test method. Generally, the first time in the morning urine, the end of the test paper into the urine after soaking in the results within 5 minutes, if more than five minutes to show the results may show errors. The second case may be irregular pregnancy test stick or failure, you can buy a regular manufacturer's products in the regular pharmacy, generally can prevent these situations from showing. If the pregnancy test stick shows a bar, the hint is negative; if it shows a deep and shallow hint is weakly positive, it can be repeated a week later.