I had my period on 16th august but was very very light and only lasted 3days which is about the norm - been doing the clearblue digital ovulation sticks and came up peak straight away on friday 25th...this morning i just had a feeling a might be preggers took a cheapy test came up a very clear positive so took a clearblue digital.... PREGNANT. Am i pregnant or is it a chemical...had a miscarriage in feb this year so feeling a bit unsure of things.