Had an abortion on Aug 8 had a light brownish bleed went for a follow up on Aug 11 doctor said abortion was successful gave me primolut to take for 4 days had withdrawal bleed on aug 22, 7 days after I stopped the pill, almost the ending of September and no period last time I had sex was July 23 took home pregnancy test came back positive is it possible for me yo still be pregnant after withdrawal bleed.