RIGHT TIME and WEEK FOR HOME PREGNACY TEST ?

I dont remember when my test resulted 2 lines. But i do remember that first time checking it resulted as 1 clear n another one not too clear. So i decided to buy Clearblue Digital and normal pregnancy test. Normal pregnancy test straight away showed + symbol and the digital showed the result as Pregnant with weeks conceived indication. Because the first 2 tests i bought are the cheaper one. Costs around rm8-10.