left over HCG or a new pregnancy

long story short..... I found out April 22 I was pregnant and started having cramps and light bright bleeding the end of April prior to my confirmation appointment on 5/8. Prior to that appointment I had a ER visit for vaginal bleeding a mild cramping a week prior. I took tests that came back faint lines & had HCG levels checked which came back at 1034 on 5/3.....167 on 5/8......49.9 on 5/29..... Today's 6/11 and I'm getting positive results. Not getting hopes up... Anybody else been through this situation?