Pregnancy test valid tak?

Hi mommy, i delayed period dah 11days based on tracker app(selalunya on time). So sy berlapang dada cuba buat test, the result 1 line....negative. cumanya test strip tu yg i beli masa firstborn i 2 yrs ago..biasala anak first excited, beli byk pregnancy test tu.. hahah.. so agak2 valid ke result tu atau mybe test tu sebenarnya dh rosak or expired.? Maybe.. ada yg ada pengalaman mcm ni?