Confused ?

Hey everyone, so basically my period was due on the 19th April but didn't come, I took a pregnancy test on the 27th April which was positive (clearblue digital said 1-2)- shortly after getting the positive I started to bleed and slightly cramp, not a lot of blood mainly when I wiped after going to the toilet. This lasted for 2days then stopped. Then again a few days later I started to bleed again slightly for a further 5 days or so but no pain at all (clearblue test then said 'pregnant 2-3) . According to when my lmp date I should be 7 weeks but Today I took another test and it came back as 'not pregnant'