Is it a yesss ??????

Roshaan
So girls i had a missed miscarriage on 15 april then had my first periods on 15 may ... Today im 8dpo so i checked n i guess i got my bfp in faint line 
But i just want to knw sumhow its not possible thats i still have old hcg ???? 
Hope you guys got it wat im saying im shivering right now