I am a 19 years olf female. I got intimated with my bf on 23 of june. Nd im having spotted bleeding since then no proper periods. But a short period of 3 days in the month of july. After tht no periods but spotted bleeding. I am taking (isotane 20) but I want do a pregnancy test. At home. Using prega news. Thus this medicate affects the results? Last tym did this pregnancy test after taking 2 days break from medication. But the result was negative. But I still have a confusion in my mind tht I am pregnant or not. please help me. I want do the test again. Tell me how long I should stop taking the medication (isotane 20) before doing the test.