How long should you wait before you take a home pregnancy test if you have not had a period in two weeks and were wondering if it is possible to be pregnant although one test was negative?

you can take a home pregnancy test as soon as you think you are late from your period. if you think that you are pregnant but the test proved not and you still have the symptoms then you should maybe take another test as there is no harm in this. if still this proves negative and symptoms still persist then you should contact your doctor.