A pregnancy test that keeps showing a weak positive is considered to be a possibility of pregnancy, but a weak positive is not a confirmation of pregnancy, and it could also be a pre-menstrual change.
When the pregnancy test keeps showing a weak positive, you can choose to wait for a week before taking a retest. If it shows positive, then there is a higher chance of pregnancy and it is advisable to go to the hospital in time to confirm the diagnosis.
If the results of the retest show negative or continued weak positivity, then the chances of pregnancy are less and there is a possibility of pre-menstrual changes, which may be caused by increased hormone levels prior to menstruation.
In addition, a weak positive pregnancy test can also occur because the urine is not concentrated enough for a positive reaction due to the amount of water consumed prior to the test.